[{"OA_type":"green","abstract":[{"lang":"eng","text":"During vertebrate gastrulation, cells forming the prechordal plate undergo directed migration as a cohesive cluster. Recent studies revealed that E-cadherin-mediated coherence between these cells plays an important role in effective anterior migration, and that platelet-derived growth factor (Pdgf) appears to act as a guidance cue in this process. However, the mechanisms underlying this process at the individual cell level remain poorly understood. We have identified miles apart (mil) as a suppressor of defective anterior migration of the prospective prechordal plate in silberblick (slb)/wnt11 mutant embryos, in which E-cadherin-mediated coherence of cell movement is reduced. mil encodes Edg5, a sphingosine-1-phosphate (S1P) receptor belonging to a family of five G-protein-coupled receptors (S1PRs). S1P is a lipid signalling molecule that has been implicated in regulating cytoskeletal rearrangements, cell motility and cell adhesion in a variety of cell types. We examined the roles of Mil in anterior migration of prechordal plate progenitor cells and found that, in slb embryos injected with mil-MO, cells migrate with increased motility but decreased directionality, without restoring the coherence of cell migration. This indicates that prechordal plate progenitor cells can migrate effectively as individuals, as well as in a coherent cluster of cells. Moreover, we demonstrate that Mil regulates cell motility and polarisation through Pdgf and its intracellular effecter PI3K, but modulates cell coherence independently of the Pdgf/PI3K pathway, thus co-ordinating cell motility and coherence. These results suggest that the net migration of prechordal plate progenitors is determined by different parameters, including motility, persistence and coherence."}],"year":"2008","oa_version":"None","title":"Sphingosine-1-phosphate receptors regulate individual cell behaviours underlying the directed migration of prechordal plate progenitor cells during zebrafish gastrulation","_id":"4190","publication_status":"published","intvolume":"       135","pmid":1,"publisher":"Company of Biologists","external_id":{"pmid":["18701549"]},"author":[{"full_name":"Kai, Masatake","last_name":"Kai","first_name":"Masatake"},{"full_name":"Heisenberg, Carl-Philipp J","orcid":"0000-0002-0912-4566","id":"39427864-F248-11E8-B48F-1D18A9856A87","last_name":"Heisenberg","first_name":"Carl-Philipp J"},{"first_name":"Masazumi","last_name":"Tada","full_name":"Tada, Masazumi"}],"language":[{"iso":"eng"}],"day":"15","date_created":"2018-12-11T12:07:29Z","OA_place":"repository","article_type":"original","type":"journal_article","issue":"18","date_updated":"2026-05-21T08:53:00Z","publication":"Development","month":"09","date_published":"2008-09-15T00:00:00Z","page":"3043 - 3051","status":"public","volume":135,"citation":{"ieee":"M. Kai, C.-P. J. Heisenberg, and M. Tada, “Sphingosine-1-phosphate receptors regulate individual cell behaviours underlying the directed migration of prechordal plate progenitor cells during zebrafish gastrulation,” <i>Development</i>, vol. 135, no. 18. Company of Biologists, pp. 3043–3051, 2008.","ista":"Kai M, Heisenberg C-PJ, Tada M. 2008. Sphingosine-1-phosphate receptors regulate individual cell behaviours underlying the directed migration of prechordal plate progenitor cells during zebrafish gastrulation. Development. 135(18), 3043–3051.","short":"M. Kai, C.-P.J. Heisenberg, M. Tada, Development 135 (2008) 3043–3051.","chicago":"Kai, Masatake, Carl-Philipp J Heisenberg, and Masazumi Tada. “Sphingosine-1-Phosphate Receptors Regulate Individual Cell Behaviours Underlying the Directed Migration of Prechordal Plate Progenitor Cells during Zebrafish Gastrulation.” <i>Development</i>. Company of Biologists, 2008. <a href=\"https://doi.org/10.1242/dev.020396\">https://doi.org/10.1242/dev.020396</a>.","mla":"Kai, Masatake, et al. “Sphingosine-1-Phosphate Receptors Regulate Individual Cell Behaviours Underlying the Directed Migration of Prechordal Plate Progenitor Cells during Zebrafish Gastrulation.” <i>Development</i>, vol. 135, no. 18, Company of Biologists, 2008, pp. 3043–51, doi:<a href=\"https://doi.org/10.1242/dev.020396\">10.1242/dev.020396</a>.","ama":"Kai M, Heisenberg C-PJ, Tada M. Sphingosine-1-phosphate receptors regulate individual cell behaviours underlying the directed migration of prechordal plate progenitor cells during zebrafish gastrulation. <i>Development</i>. 2008;135(18):3043-3051. doi:<a href=\"https://doi.org/10.1242/dev.020396\">10.1242/dev.020396</a>","apa":"Kai, M., Heisenberg, C.-P. J., &#38; Tada, M. (2008). Sphingosine-1-phosphate receptors regulate individual cell behaviours underlying the directed migration of prechordal plate progenitor cells during zebrafish gastrulation. <i>Development</i>. Company of Biologists. <a href=\"https://doi.org/10.1242/dev.020396\">https://doi.org/10.1242/dev.020396</a>"},"extern":"1","publist_id":"1928","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1242/dev.020396","article_processing_charge":"No"},{"OA_type":"green","year":"2008","abstract":[{"text":"The controlled adhesion of cells to each other and to the extracellular matrix is crucial for tissue development and maintenance. Numerous assays have been developed to quantify cell adhesion. Among these, the use of atomic force microscopy (AFM) for single-cell force spectroscopy (SCFS) has recently been established. This assay permits the adhesion of living cells to be studied in near-physiological conditions. This implementation of AFM allows unrivaled spatial and temporal control of cells, as well as highly quantitative force actuation and force measurement that is sufficiently sensitive to characterize the interaction of single molecules. Therefore, not only overall cell adhesion but also the properties of single adhesion-receptor-ligand interactions can be studied. Here we describe current implementations and applications of SCFS, as well as potential pitfalls, and outline how developments will provide insight into the forces, energetics and kinetics of cell-adhesion processes.","lang":"eng"}],"oa_version":"None","_id":"4193","publication_status":"published","title":"Single-cell force spectroscopy","intvolume":"       121","pmid":1,"publisher":"Company of Biologists","external_id":{"pmid":["18492792"]},"publication_identifier":{"issn":["0021-9533"],"eissn":["1477-9137"]},"author":[{"full_name":"Helenius, Jonne","first_name":"Jonne","last_name":"Helenius"},{"orcid":"0000-0002-0912-4566","full_name":"Heisenberg, Carl-Philipp J","first_name":"Carl-Philipp J","id":"39427864-F248-11E8-B48F-1D18A9856A87","last_name":"Heisenberg"},{"first_name":"Hermann","last_name":"Gaub","full_name":"Gaub, Hermann"},{"last_name":"Mueller","first_name":"Daniel","full_name":"Mueller, Daniel"}],"day":"01","language":[{"iso":"eng"}],"date_created":"2018-12-11T12:07:30Z","OA_place":"repository","article_type":"comment","type":"journal_article","issue":"11","date_updated":"2026-05-28T14:11:54Z","date_published":"2008-06-01T00:00:00Z","month":"06","publication":"Journal of Cell Science","status":"public","page":"1785 - 1791","citation":{"chicago":"Helenius, Jonne, Carl-Philipp J Heisenberg, Hermann Gaub, and Daniel Mueller. “Single-Cell Force Spectroscopy.” <i>Journal of Cell Science</i>. Company of Biologists, 2008. <a href=\"https://doi.org/10.1242/jcs.030999\">https://doi.org/10.1242/jcs.030999</a>.","mla":"Helenius, Jonne, et al. “Single-Cell Force Spectroscopy.” <i>Journal of Cell Science</i>, vol. 121, no. 11, Company of Biologists, 2008, pp. 1785–91, doi:<a href=\"https://doi.org/10.1242/jcs.030999\">10.1242/jcs.030999</a>.","apa":"Helenius, J., Heisenberg, C.-P. J., Gaub, H., &#38; Mueller, D. (2008). Single-cell force spectroscopy. <i>Journal of Cell Science</i>. Company of Biologists. <a href=\"https://doi.org/10.1242/jcs.030999\">https://doi.org/10.1242/jcs.030999</a>","ama":"Helenius J, Heisenberg C-PJ, Gaub H, Mueller D. Single-cell force spectroscopy. <i>Journal of Cell Science</i>. 2008;121(11):1785-1791. doi:<a href=\"https://doi.org/10.1242/jcs.030999\">10.1242/jcs.030999</a>","ieee":"J. Helenius, C.-P. J. Heisenberg, H. Gaub, and D. Mueller, “Single-cell force spectroscopy,” <i>Journal of Cell Science</i>, vol. 121, no. 11. Company of Biologists, pp. 1785–1791, 2008.","ista":"Helenius J, Heisenberg C-PJ, Gaub H, Mueller D. 2008. Single-cell force spectroscopy. Journal of Cell Science. 121(11), 1785–1791.","short":"J. Helenius, C.-P.J. Heisenberg, H. Gaub, D. Mueller, Journal of Cell Science 121 (2008) 1785–1791."},"volume":121,"publist_id":"1924","extern":"1","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1242/jcs.030999","article_processing_charge":"No"},{"publication_identifier":{"issn":["0959-437X"],"eissn":["1879-0380"]},"external_id":{"pmid":["18721878"]},"publisher":"Elsevier","pmid":1,"intvolume":"        18","title":"Back and forth between cell fate specification and movement during vertebrate gastrulation","publication_status":"published","_id":"4198","oa_version":"None","abstract":[{"lang":"eng","text":"Animal body plan arises during gastrulation and organogenesis by the coordination of inductive events and cell movements. Several signaling pathways, such as BMP, FGF, Hedgehog, Nodal, and Wnt have well-recognized instructive roles in cell fate specification during vertebrate embryogenesis. Growing evidence indicates that BMP, Nodal, and FGF signaling also regulate cell movements, and that they do so through mechanisms distinct from those that specify cell fates. Moreover, pathways controlling cell movements can also indirectly influence cell fate specification by regulating dimensions and relative positions of interacting tissues. The current challenge is to delineate the molecular mechanisms via which the major signaling pathways regulate cell fate specification and movements, and how these two processes are coordinated to ensure normal development."}],"year":"2008","OA_type":"closed access","article_processing_charge":"No","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1016/j.gde.2008.07.011","extern":"1","publist_id":"1918","volume":18,"citation":{"apa":"Heisenberg, C.-P. J., &#38; Solnica Krezel, L. (2008). Back and forth between cell fate specification and movement during vertebrate gastrulation. <i>Current Opinion in Genetics &#38; Development</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.gde.2008.07.011\">https://doi.org/10.1016/j.gde.2008.07.011</a>","ama":"Heisenberg C-PJ, Solnica Krezel L. Back and forth between cell fate specification and movement during vertebrate gastrulation. <i>Current Opinion in Genetics &#38; Development</i>. 2008;18(4):311-316. doi:<a href=\"https://doi.org/10.1016/j.gde.2008.07.011\">10.1016/j.gde.2008.07.011</a>","mla":"Heisenberg, Carl-Philipp J., and Lilianna Solnica Krezel. “Back and Forth between Cell Fate Specification and Movement during Vertebrate Gastrulation.” <i>Current Opinion in Genetics &#38; Development</i>, vol. 18, no. 4, Elsevier, 2008, pp. 311–16, doi:<a href=\"https://doi.org/10.1016/j.gde.2008.07.011\">10.1016/j.gde.2008.07.011</a>.","chicago":"Heisenberg, Carl-Philipp J, and Lilianna Solnica Krezel. “Back and Forth between Cell Fate Specification and Movement during Vertebrate Gastrulation.” <i>Current Opinion in Genetics &#38; Development</i>. Elsevier, 2008. <a href=\"https://doi.org/10.1016/j.gde.2008.07.011\">https://doi.org/10.1016/j.gde.2008.07.011</a>.","ista":"Heisenberg C-PJ, Solnica Krezel L. 2008. Back and forth between cell fate specification and movement during vertebrate gastrulation. Current Opinion in Genetics &#38; Development. 18(4), 311–316.","short":"C.-P.J. Heisenberg, L. Solnica Krezel, Current Opinion in Genetics &#38; Development 18 (2008) 311–316.","ieee":"C.-P. J. Heisenberg and L. Solnica Krezel, “Back and forth between cell fate specification and movement during vertebrate gastrulation,” <i>Current Opinion in Genetics &#38; Development</i>, vol. 18, no. 4. Elsevier, pp. 311–316, 2008."},"page":"311 - 316","status":"public","publication":"Current Opinion in Genetics & Development","date_published":"2008-01-01T00:00:00Z","month":"01","date_updated":"2026-05-28T14:03:47Z","type":"journal_article","issue":"4","article_type":"review","language":[{"iso":"eng"}],"date_created":"2018-12-11T12:07:32Z","day":"01","author":[{"first_name":"Carl-Philipp J","last_name":"Heisenberg","id":"39427864-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-0912-4566","full_name":"Heisenberg, Carl-Philipp J"},{"full_name":"Solnica Krezel, Lilianna","last_name":"Solnica Krezel","first_name":"Lilianna"}]},{"article_processing_charge":"No","volume":135,"citation":{"mla":"Bollenbach, Tobias, et al. “Precision of the Dpp Gradient.” <i>Development</i>, vol. 135, no. 6, Company of Biologists, 2008, pp. 1137–46, doi:<a href=\"https://doi.org/10.1242/dev.012062\">10.1242/dev.012062</a>.","apa":"Bollenbach, T., Pantazis, P., Kicheva, A., Bokel, C., González Gaitán, M., &#38; Julicher, F. (2008). Precision of the Dpp gradient. <i>Development</i>. Company of Biologists. <a href=\"https://doi.org/10.1242/dev.012062\">https://doi.org/10.1242/dev.012062</a>","ama":"Bollenbach T, Pantazis P, Kicheva A, Bokel C, González Gaitán M, Julicher F. Precision of the Dpp gradient. <i>Development</i>. 2008;135(6):1137-1146. doi:<a href=\"https://doi.org/10.1242/dev.012062\">10.1242/dev.012062</a>","chicago":"Bollenbach, Tobias, Periklis Pantazis, Anna Kicheva, Christian Bokel, Marcos González Gaitán, and Frank Julicher. “Precision of the Dpp Gradient.” <i>Development</i>. Company of Biologists, 2008. <a href=\"https://doi.org/10.1242/dev.012062\">https://doi.org/10.1242/dev.012062</a>.","ista":"Bollenbach T, Pantazis P, Kicheva A, Bokel C, González Gaitán M, Julicher F. 2008. Precision of the Dpp gradient. Development. 135(6), 1137–1146.","short":"T. Bollenbach, P. Pantazis, A. Kicheva, C. Bokel, M. González Gaitán, F. Julicher, Development 135 (2008) 1137–1146.","ieee":"T. Bollenbach, P. Pantazis, A. Kicheva, C. Bokel, M. González Gaitán, and F. Julicher, “Precision of the Dpp gradient,” <i>Development</i>, vol. 135, no. 6. Company of Biologists, pp. 1137–1146, 2008."},"publist_id":"1889","extern":"1","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1242/dev.012062","issue":"6","type":"journal_article","date_updated":"2026-05-28T13:59:30Z","publication":"Development","month":"03","date_published":"2008-03-15T00:00:00Z","page":"1137 - 1146","status":"public","author":[{"first_name":"Tobias","last_name":"Bollenbach","full_name":"Bollenbach, Tobias"},{"full_name":"Pantazis, Periklis","first_name":"Periklis","last_name":"Pantazis"},{"orcid":"0000-0003-4509-4998","full_name":"Kicheva, Anna","first_name":"Anna","id":"3959A2A0-F248-11E8-B48F-1D18A9856A87","last_name":"Kicheva"},{"full_name":"Bokel, Christian","last_name":"Bokel","first_name":"Christian"},{"last_name":"González Gaitán","first_name":"Marcos","full_name":"González Gaitán, Marcos"},{"first_name":"Frank","last_name":"Julicher","full_name":"Julicher, Frank"}],"day":"15","date_created":"2018-12-11T12:07:42Z","language":[{"iso":"eng"}],"article_type":"original","external_id":{"pmid":["18296653"]},"publisher":"Company of Biologists","oa_version":"None","title":"Precision of the Dpp gradient","_id":"4227","publication_status":"published","intvolume":"       135","pmid":1,"OA_type":"closed access","abstract":[{"lang":"eng","text":"Morphogen concentration gradients provide positional information by activating target genes in a concentration-dependent manner. Recent reports show that the gradient of the syncytial morphogen Bicoid seems to provide precise positional information to determine target gene domains. For secreted morphogenetic ligands, the precision of the gradients, the signal transduction and the reliability of target gene expression domains have not been studied. Here we investigate these issues for the TGF-beta-type morphogen Dpp. We first studied theoretically how cell-to-cell variability in the source, the target tissue, or both, contribute to the variations of the gradient. Fluctuations in the source and target generate a local maximum of precision at a finite distance to the source. We then determined experimentally in the wing epithelium: (1) the precision of the Dpp concentration gradient; (2) the precision of the Dpp signaling activity profile; and (3) the precision of activation of the Dpp target gene spalt. As captured by our theoretical description, the Dpp gradient provides positional information with a maximal precision a few cells away from the source. This maximal precision corresponds to a positional uncertainly of about a single cell diameter. The precision of the Dpp gradient accounts for the precision of the spalt expression range, implying that Dpp can act as a morphogen to coarsely determine the expression pattern of target genes."}],"year":"2008"},{"citation":{"ama":"Yang E, Barton NH, Arslan T, Erdogan A. A novel shifting balance theory-based approach to optimization of an energy-constrained modulation scheme for wireless sensor networks. In: IEEE; 2008:2749-2756. doi:<a href=\"https://doi.org/10.1109/CEC.2008.4631167\">10.1109/CEC.2008.4631167</a>","apa":"Yang, E., Barton, N. H., Arslan, T., &#38; Erdogan, A. (2008). A novel shifting balance theory-based approach to optimization of an energy-constrained modulation scheme for wireless sensor networks (pp. 2749–2756). Presented at the WCCI: IEEE World Congress on Computational Intelligence, Hong Kong: IEEE. <a href=\"https://doi.org/10.1109/CEC.2008.4631167\">https://doi.org/10.1109/CEC.2008.4631167</a>","mla":"Yang, Erfu, et al. <i>A Novel Shifting Balance Theory-Based Approach to Optimization of an Energy-Constrained Modulation Scheme for Wireless Sensor Networks</i>. IEEE, 2008, pp. 2749–56, doi:<a href=\"https://doi.org/10.1109/CEC.2008.4631167\">10.1109/CEC.2008.4631167</a>.","chicago":"Yang, Erfu, Nicholas H Barton, Tughrul Arslan, and Ahmet Erdogan. “A Novel Shifting Balance Theory-Based Approach to Optimization of an Energy-Constrained Modulation Scheme for Wireless Sensor Networks,” 2749–56. IEEE, 2008. <a href=\"https://doi.org/10.1109/CEC.2008.4631167\">https://doi.org/10.1109/CEC.2008.4631167</a>.","short":"E. Yang, N.H. Barton, T. Arslan, A. Erdogan, in:, IEEE, 2008, pp. 2749–2756.","ista":"Yang E, Barton NH, Arslan T, Erdogan A. 2008. A novel shifting balance theory-based approach to optimization of an energy-constrained modulation scheme for wireless sensor networks. WCCI: IEEE World Congress on Computational Intelligence, 2749–2756.","ieee":"E. Yang, N. H. Barton, T. Arslan, and A. Erdogan, “A novel shifting balance theory-based approach to optimization of an energy-constrained modulation scheme for wireless sensor networks,” presented at the WCCI: IEEE World Congress on Computational Intelligence, Hong Kong, 2008, pp. 2749–2756."},"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publisher":"IEEE","doi":"10.1109/CEC.2008.4631167","publist_id":"1861","extern":"1","publication_identifier":{"isbn":["9781424418237"]},"article_processing_charge":"No","language":[{"iso":"eng"}],"day":"23","date_created":"2018-12-11T12:07:49Z","conference":{"name":"WCCI: IEEE World Congress on Computational Intelligence","end_date":"2008-06-06","location":"Hong Kong","start_date":"2008-06-01"},"author":[{"full_name":"Yang, Erfu","first_name":"Erfu","last_name":"Yang"},{"orcid":"0000-0002-8548-5240","full_name":"Barton, Nicholas H","first_name":"Nicholas H","id":"4880FE40-F248-11E8-B48F-1D18A9856A87","last_name":"Barton"},{"full_name":"Arslan, Tughrul","last_name":"Arslan","first_name":"Tughrul"},{"full_name":"Erdogan, Ahmet","first_name":"Ahmet","last_name":"Erdogan"}],"year":"2008","abstract":[{"lang":"eng","text":"This paper presents a new approach to optimization of an energy-constrained modulation scheme for wireless sensor networks by taking advantage of a novel bio-inspired optimization algorithm. The algorithm is inspired by Wrightpsilas shifting balance theory (SBT) of evolution in population genetics. The total energy consumption of an energy-constrained modulation scheme is minimized by using the new SBT-based optimization algorithm. The results obtained by this new algorithm are compared with other popular optimization algorithms. Numerical experiments are performed to demonstrate that the SBT-based algorithm could be used as an efficient optimizer for solving the optimization problems arising from currently emerging energy-efficient wireless sensor networks."}],"OA_type":"closed access","date_updated":"2026-05-28T13:57:07Z","_id":"4244","publication_status":"published","title":"A novel shifting balance theory-based approach to optimization of an energy-constrained modulation scheme for wireless sensor networks","type":"conference","oa_version":"None","status":"public","page":"2749 - 2756","month":"09","date_published":"2008-09-23T00:00:00Z"},{"publication_identifier":{"issn":["0014-3820"],"eissn":["1558-5646"]},"external_id":{"pmid":["18522711"]},"publisher":"Oxford Academic","title":"Effects of spontaneous mutation accumulation on sex ratio traits","publication_status":"published","_id":"4245","oa_version":"None","pmid":1,"intvolume":"        62","abstract":[{"lang":"eng","text":"Sex allocation theory has proved extremely successful at predicting when individuals should adjust the sex of their offspring in response to environmental conditions. However, we know rather little about the underlying genetics of sex ratio or how genetic architecture might constrain adaptive sex-ratio behavior. We examined how mutation influenced genetic variation in the sex ratios produced by the parasitoid wasp Nasonia vitripennis. In a mutation accumulation experiment, we determined the mutability of sex ratio, and compared this with the amount of genetic variation observed in natural populations. We found that the mutability (h2m) ranges from 0.001 to 0.002, similar to estimates for life-history traits in other organisms. These estimates suggest one mutation every 5–60 generations, which shift the sex ratio by approximately 0.01 (proportion males). In this and other studies, the genetic variation in N. vitripennis sex ratio ranged from 0.02 to 0.17 (broad-sense heritability, H2). If sex ratio is maintained by mutation–selection balance, a higher genetic variance would be expected given our mutational parameters. Instead, the observed genetic variance perhaps suggests additional selection against sex-ratio mutations with deleterious effects on other fitness traits as well as sex ratio (i.e., pleiotropy), as has been argued to be the case more generally."}],"year":"2008","OA_type":"closed access","article_processing_charge":"No","volume":62,"citation":{"ista":"Pannebakker B, Halligan D, Reynolds KT, Ballantyne G, Shuker D, Barton NH, West S. 2008. Effects of spontaneous mutation accumulation on sex ratio traits. Evolution; International Journal of Organic Evolution. 62(8), 1921–1935.","short":"B. Pannebakker, D. Halligan, K.T. Reynolds, G. Ballantyne, D. Shuker, N.H. Barton, S. West, Evolution; International Journal of Organic Evolution 62 (2008) 1921–1935.","ieee":"B. Pannebakker <i>et al.</i>, “Effects of spontaneous mutation accumulation on sex ratio traits,” <i>Evolution; International Journal of Organic Evolution</i>, vol. 62, no. 8. Oxford Academic, pp. 1921–1935, 2008.","apa":"Pannebakker, B., Halligan, D., Reynolds, K. T., Ballantyne, G., Shuker, D., Barton, N. H., &#38; West, S. (2008). Effects of spontaneous mutation accumulation on sex ratio traits. <i>Evolution; International Journal of Organic Evolution</i>. Oxford Academic. <a href=\"https://doi.org/10.1111/j.1558-5646.2008.00434.x\">https://doi.org/10.1111/j.1558-5646.2008.00434.x</a>","ama":"Pannebakker B, Halligan D, Reynolds KT, et al. Effects of spontaneous mutation accumulation on sex ratio traits. <i>Evolution; International Journal of Organic Evolution</i>. 2008;62(8):1921-1935. doi:<a href=\"https://doi.org/10.1111/j.1558-5646.2008.00434.x\">10.1111/j.1558-5646.2008.00434.x</a>","mla":"Pannebakker, Bart, et al. “Effects of Spontaneous Mutation Accumulation on Sex Ratio Traits.” <i>Evolution; International Journal of Organic Evolution</i>, vol. 62, no. 8, Oxford Academic, 2008, pp. 1921–35, doi:<a href=\"https://doi.org/10.1111/j.1558-5646.2008.00434.x\">10.1111/j.1558-5646.2008.00434.x</a>.","chicago":"Pannebakker, Bart, Daniel Halligan, K Tracy Reynolds, Gavin Ballantyne, David Shuker, Nicholas H Barton, and Stuart West. “Effects of Spontaneous Mutation Accumulation on Sex Ratio Traits.” <i>Evolution; International Journal of Organic Evolution</i>. Oxford Academic, 2008. <a href=\"https://doi.org/10.1111/j.1558-5646.2008.00434.x\">https://doi.org/10.1111/j.1558-5646.2008.00434.x</a>."},"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1111/j.1558-5646.2008.00434.x","publist_id":"1860","extern":"1","date_updated":"2026-05-28T13:46:48Z","issue":"8","type":"journal_article","page":"1921 - 1935","status":"public","publication":"Evolution; International Journal of Organic Evolution","month":"08","date_published":"2008-08-01T00:00:00Z","day":"01","date_created":"2018-12-11T12:07:49Z","language":[{"iso":"eng"}],"author":[{"first_name":"Bart","last_name":"Pannebakker","full_name":"Pannebakker, Bart"},{"last_name":"Halligan","first_name":"Daniel","full_name":"Halligan, Daniel"},{"first_name":"K Tracy","last_name":"Reynolds","full_name":"Reynolds, K Tracy"},{"first_name":"Gavin","last_name":"Ballantyne","full_name":"Ballantyne, Gavin"},{"first_name":"David","last_name":"Shuker","full_name":"Shuker, David"},{"first_name":"Nicholas H","id":"4880FE40-F248-11E8-B48F-1D18A9856A87","last_name":"Barton","orcid":"0000-0002-8548-5240","full_name":"Barton, Nicholas H"},{"first_name":"Stuart","last_name":"West","full_name":"West, Stuart"}],"article_type":"original"},{"acknowledgement":"This work was supported by the BMBF (No. 03N8711) and the EU project D-DotFET (No. 012150)","abstract":[{"text":"Scanning probe microscopy; Semiconductor quantum dots; Composition gradients; Composition profiles; Nanotomography; Single quantum dots; Strained sige/si; Three-dimensional (3D); Wet-chemical etchings; X-ray scattering measurements; quantum dot; methodology; nanotechnology; optical tomography; scanning probe microscopy; three dimensional imaging; Imaging, Three-Dimensional; Materials Testing; Microscopy, Scanning Probe; Nanotechnology; Quantum Dots; Tomography,","lang":"eng"}],"year":"2008","author":[{"full_name":"Rastelli, Armando","last_name":"Rastelli","first_name":"Armando"},{"first_name":"Mathieu","last_name":"Stoffel","full_name":"Stoffel, Mathieu"},{"full_name":"Malachias, Ângelo S","first_name":"Ângelo","last_name":"Malachias"},{"full_name":"Merdzhanova, Tsvetelina","first_name":"Tsvetelina","last_name":"Merdzhanova"},{"full_name":"Georgios Katsaros","first_name":"Georgios","id":"38DB5788-F248-11E8-B48F-1D18A9856A87","last_name":"Katsaros"},{"last_name":"Kern","first_name":"Klaus","full_name":"Kern, Klaus"},{"last_name":"Metzger","first_name":"Till","full_name":"Metzger, Till H"},{"last_name":"Schmidt","first_name":"Oliver","full_name":"Schmidt, Oliver G"}],"date_created":"2018-12-11T11:53:48Z","day":"01","publication":"Nano Letters","month":"05","intvolume":"         8","date_published":"2008-05-01T00:00:00Z","page":"1404 - 1409","status":"public","type":"journal_article","issue":"5","title":"Three-dimensional composition profiles of single quantum dots determined by scanning-probe-microscopy-based nanotomography","_id":"1749","publication_status":"published","date_updated":"2021-01-12T06:52:57Z","extern":1,"publist_id":"5374","publisher":"American Chemical Society","doi":"10.1021/nl080290y","volume":8,"quality_controlled":0,"citation":{"chicago":"Rastelli, Armando, Mathieu Stoffel, Ângelo Malachias, Tsvetelina Merdzhanova, Georgios Katsaros, Klaus Kern, Till Metzger, and Oliver Schmidt. “Three-Dimensional Composition Profiles of Single Quantum Dots Determined by Scanning-Probe-Microscopy-Based Nanotomography.” <i>Nano Letters</i>. American Chemical Society, 2008. <a href=\"https://doi.org/10.1021/nl080290y\">https://doi.org/10.1021/nl080290y</a>.","mla":"Rastelli, Armando, et al. “Three-Dimensional Composition Profiles of Single Quantum Dots Determined by Scanning-Probe-Microscopy-Based Nanotomography.” <i>Nano Letters</i>, vol. 8, no. 5, American Chemical Society, 2008, pp. 1404–09, doi:<a href=\"https://doi.org/10.1021/nl080290y\">10.1021/nl080290y</a>.","apa":"Rastelli, A., Stoffel, M., Malachias, Â., Merdzhanova, T., Katsaros, G., Kern, K., … Schmidt, O. (2008). Three-dimensional composition profiles of single quantum dots determined by scanning-probe-microscopy-based nanotomography. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/nl080290y\">https://doi.org/10.1021/nl080290y</a>","ama":"Rastelli A, Stoffel M, Malachias Â, et al. Three-dimensional composition profiles of single quantum dots determined by scanning-probe-microscopy-based nanotomography. <i>Nano Letters</i>. 2008;8(5):1404-1409. doi:<a href=\"https://doi.org/10.1021/nl080290y\">10.1021/nl080290y</a>","ieee":"A. Rastelli <i>et al.</i>, “Three-dimensional composition profiles of single quantum dots determined by scanning-probe-microscopy-based nanotomography,” <i>Nano Letters</i>, vol. 8, no. 5. American Chemical Society, pp. 1404–1409, 2008.","ista":"Rastelli A, Stoffel M, Malachias Â, Merdzhanova T, Katsaros G, Kern K, Metzger T, Schmidt O. 2008. Three-dimensional composition profiles of single quantum dots determined by scanning-probe-microscopy-based nanotomography. Nano Letters. 8(5), 1404–1409.","short":"A. Rastelli, M. Stoffel, Â. Malachias, T. Merdzhanova, G. Katsaros, K. Kern, T. Metzger, O. Schmidt, Nano Letters 8 (2008) 1404–1409."}},{"publication":"Physical Review Letters","month":"08","intvolume":"       101","date_published":"2008-08-29T00:00:00Z","status":"public","type":"journal_article","issue":"9","title":"Positioning of strained islands by interaction with surface nanogrooves","publication_status":"published","_id":"1751","date_updated":"2021-01-12T06:52:58Z","abstract":[{"lang":"eng","text":"When strained Stranski-Krastanow islands are used as &quot;self-assembled quantum dots,&quot; a key goal is to control the island position. Here we show that nanoscale grooves can control the nucleation of epitaxial Ge islands on Si(001), and can drive lateral motion of existing islands onto the grooves, even when the grooves are very narrow and shallow compared to the islands. A position centered on the groove minimizes energy. We use as prototype grooves the trenches which form naturally around islands. During coarsening, the shrinking islands move laterally to sit directly astride that trench. In subsequent growth, we demonstrate that islands nucleate on the &quot;empty trenches&quot; which remain on the surface after complete dissolution of the original islands."}],"year":"2008","author":[{"full_name":"Georgios Katsaros","first_name":"Georgios","last_name":"Katsaros","id":"38DB5788-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Tersoff, Jerry","first_name":"Jerry","last_name":"Tersoff"},{"full_name":"Stoffel, Mathieu","first_name":"Mathieu","last_name":"Stoffel"},{"first_name":"Armando","last_name":"Rastelli","full_name":"Rastelli, Armando"},{"full_name":"Acosta-Diaz, P","first_name":"P","last_name":"Acosta Diaz"},{"last_name":"Kar","first_name":"Gouranga","full_name":"Kar, Gouranga S"},{"last_name":"Costantini","first_name":"Giovanni","full_name":"Costantini, Giovanni"},{"full_name":"Schmidt, Oliver G","first_name":"Oliver","last_name":"Schmidt"},{"full_name":"Kern, Klaus","last_name":"Kern","first_name":"Klaus"}],"day":"29","date_created":"2018-12-11T11:53:49Z","extern":1,"publist_id":"5373","doi":"10.1103/PhysRevLett.101.096103","publisher":"American Physical Society","volume":101,"quality_controlled":0,"citation":{"chicago":"Katsaros, Georgios, Jerry Tersoff, Mathieu Stoffel, Armando Rastelli, P Acosta Diaz, Gouranga Kar, Giovanni Costantini, Oliver Schmidt, and Klaus Kern. “Positioning of Strained Islands by Interaction with Surface Nanogrooves.” <i>Physical Review Letters</i>. American Physical Society, 2008. <a href=\"https://doi.org/10.1103/PhysRevLett.101.096103\">https://doi.org/10.1103/PhysRevLett.101.096103</a>.","mla":"Katsaros, Georgios, et al. “Positioning of Strained Islands by Interaction with Surface Nanogrooves.” <i>Physical Review Letters</i>, vol. 101, no. 9, American Physical Society, 2008, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.101.096103\">10.1103/PhysRevLett.101.096103</a>.","apa":"Katsaros, G., Tersoff, J., Stoffel, M., Rastelli, A., Acosta Diaz, P., Kar, G., … Kern, K. (2008). Positioning of strained islands by interaction with surface nanogrooves. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.101.096103\">https://doi.org/10.1103/PhysRevLett.101.096103</a>","ama":"Katsaros G, Tersoff J, Stoffel M, et al. Positioning of strained islands by interaction with surface nanogrooves. <i>Physical Review Letters</i>. 2008;101(9). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.101.096103\">10.1103/PhysRevLett.101.096103</a>","ieee":"G. Katsaros <i>et al.</i>, “Positioning of strained islands by interaction with surface nanogrooves,” <i>Physical Review Letters</i>, vol. 101, no. 9. American Physical Society, 2008.","ista":"Katsaros G, Tersoff J, Stoffel M, Rastelli A, Acosta Diaz P, Kar G, Costantini G, Schmidt O, Kern K. 2008. Positioning of strained islands by interaction with surface nanogrooves. Physical Review Letters. 101(9).","short":"G. Katsaros, J. Tersoff, M. Stoffel, A. Rastelli, P. Acosta Diaz, G. Kar, G. Costantini, O. Schmidt, K. Kern, Physical Review Letters 101 (2008)."}},{"status":"public","page":"315 - 318","intvolume":"       454","month":"07","date_published":"2008-07-17T00:00:00Z","oa":1,"publication":"Nature","date_updated":"2021-01-12T06:53:03Z","_id":"1763","publication_status":"published","title":"Climbing the Jaynes-Cummings ladder and observing its √n nonlinearity in a cavity QED system","type":"journal_article","issue":"7202","year":"2008","acknowledgement":"This work was supported by SNF and ETHZ. P.J.L. was supported by the EU with an MC-EIF. A.B. was supported by NSERC, CIFAR and FQRNT","abstract":[{"lang":"eng","text":"The field of cavity quantum electrodynamics (QED), traditionally studied in atomic systems, has gained new momentum by recent reports of quantum optical experiments with solid-state semiconducting and superconducting systems. In cavity QED, the observation of the vacuum Rabi mode splitting is used to investigate the nature of matter-light interaction at a quantum-mechanical level. However, this effect can, at least in principle, be explained classically as the normal mode splitting of two coupled linear oscillators. It has been suggested that an observation of the scaling of the resonant atom-photon coupling strength in the Jaynes-Cummings energy ladder with the square root of photon number n is sufficient to prove that the system is quantum mechanical in nature. Here we report a direct spectroscopic observation of this characteristic quantum nonlinearity. Measuring the photonic degree of freedom of the coupled system, our measurements provide unambiguous spectroscopic evidence for the quantum nature of the resonant atom-field interaction in cavity QED. We explore atom-photon superposition states involving up to two photons, using a spectroscopic pump and probe technique. The experiments have been performed in a circuit QED set-up, in which very strong coupling is realized by the large dipole coupling strength and the long coherence time of a superconducting qubit embedded in a high-quality on-chip microwave cavity. Circuit QED systems also provide a natural quantum interface between flying qubits (photons) and stationary qubits for applications in quantum information processing and communication."}],"main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/0902.1827"}],"date_created":"2018-12-11T11:53:53Z","day":"17","author":[{"last_name":"Fink","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","first_name":"Johannes M","full_name":"Johannes Fink","orcid":"0000-0001-8112-028X"},{"full_name":"Göppl, M","first_name":"M","last_name":"Göppl"},{"first_name":"Matthias","last_name":"Baur","full_name":"Baur, Matthias P"},{"last_name":"Bianchetti","first_name":"R","full_name":"Bianchetti, R"},{"first_name":"Peter","last_name":"Leek","full_name":"Leek, Peter J"},{"full_name":"Blais, Alexandre","last_name":"Blais","first_name":"Alexandre"},{"last_name":"Wallraff","first_name":"Andreas","full_name":"Wallraff, Andreas"}],"publisher":"Nature Publishing Group","doi":"10.1038/nature07112","publist_id":"5358","extern":1,"quality_controlled":0,"citation":{"ista":"Fink JM, Göppl M, Baur M, Bianchetti R, Leek P, Blais A, Wallraff A. 2008. Climbing the Jaynes-Cummings ladder and observing its √n nonlinearity in a cavity QED system. Nature. 454(7202), 315–318.","short":"J.M. Fink, M. Göppl, M. Baur, R. Bianchetti, P. Leek, A. Blais, A. Wallraff, Nature 454 (2008) 315–318.","ieee":"J. M. Fink <i>et al.</i>, “Climbing the Jaynes-Cummings ladder and observing its √n nonlinearity in a cavity QED system,” <i>Nature</i>, vol. 454, no. 7202. Nature Publishing Group, pp. 315–318, 2008.","mla":"Fink, Johannes M., et al. “Climbing the Jaynes-Cummings Ladder and Observing Its √n Nonlinearity in a Cavity QED System.” <i>Nature</i>, vol. 454, no. 7202, Nature Publishing Group, 2008, pp. 315–18, doi:<a href=\"https://doi.org/10.1038/nature07112\">10.1038/nature07112</a>.","apa":"Fink, J. M., Göppl, M., Baur, M., Bianchetti, R., Leek, P., Blais, A., &#38; Wallraff, A. (2008). Climbing the Jaynes-Cummings ladder and observing its √n nonlinearity in a cavity QED system. <i>Nature</i>. Nature Publishing Group. <a href=\"https://doi.org/10.1038/nature07112\">https://doi.org/10.1038/nature07112</a>","ama":"Fink JM, Göppl M, Baur M, et al. Climbing the Jaynes-Cummings ladder and observing its √n nonlinearity in a cavity QED system. <i>Nature</i>. 2008;454(7202):315-318. doi:<a href=\"https://doi.org/10.1038/nature07112\">10.1038/nature07112</a>","chicago":"Fink, Johannes M, M Göppl, Matthias Baur, R Bianchetti, Peter Leek, Alexandre Blais, and Andreas Wallraff. “Climbing the Jaynes-Cummings Ladder and Observing Its √n Nonlinearity in a Cavity QED System.” <i>Nature</i>. Nature Publishing Group, 2008. <a href=\"https://doi.org/10.1038/nature07112\">https://doi.org/10.1038/nature07112</a>."},"volume":454},{"date_created":"2018-12-11T11:53:53Z","day":"28","author":[{"first_name":"A","last_name":"Fragner","full_name":"Fragner, A"},{"full_name":"Göppl, M","first_name":"M","last_name":"Göppl"},{"full_name":"Johannes Fink","orcid":"0000-0001-8112-028X","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","last_name":"Fink","first_name":"Johannes M"},{"full_name":"Baur, Matthias P","first_name":"Matthias","last_name":"Baur"},{"full_name":"Bianchetti, R","first_name":"R","last_name":"Bianchetti"},{"first_name":"Peter","last_name":"Leek","full_name":"Leek, Peter J"},{"last_name":"Blais","first_name":"Alexandre","full_name":"Blais, Alexandre"},{"full_name":"Wallraff, Andreas","last_name":"Wallraff","first_name":"Andreas"}],"year":"2008","acknowledgement":"This work was supported by the Swiss National Science Foundation and ETHZ. P.J.L. was supported by the European Commission with a Marie Curie Intra-European Fellowship. A.B. was supported by the Natural Sciences and Engineering Research Council of Canada, Canadian Institute for Advanced Research, and Fonds Québécois de la Recherche sur la Nature et les Technologies","abstract":[{"text":"Quantum theory predicts that empty space is not truly empty. Even in the absence of any particles or radiation, in pure vacuum, virtual particles are constantly created and annihilated. In an electromagnetic field, the presence of virtual photons manifests itself as a small renormalization of the energy of a quantum system, known as the Lamb shift. We present an experimental observation of the Lamb shift in a solid-state system. The strong dispersive coupling of a superconducting electronic circuit acting as a quantum bit (qubit) to the vacuum field in a transmission-line resonator leads to measurable Lamb shifts of up to 1.4% of the qubit transition frequency. The qubit is also observed to couple more strongly to the vacuum field than to a single photon inside the cavity, an effect that is explained by taking into account the limited anharmonicity of the higher excited qubit states.","lang":"eng"}],"date_updated":"2021-01-12T06:53:03Z","_id":"1764","publication_status":"published","title":"Resolving vacuum fluctuations in an electrical circuit by measuring the lamb shift","issue":"5906","type":"journal_article","status":"public","page":"1357 - 1360","month":"11","date_published":"2008-11-28T00:00:00Z","intvolume":"       322","publication":"Science","citation":{"short":"A. Fragner, M. Göppl, J.M. Fink, M. Baur, R. Bianchetti, P. Leek, A. Blais, A. Wallraff, Science 322 (2008) 1357–1360.","ista":"Fragner A, Göppl M, Fink JM, Baur M, Bianchetti R, Leek P, Blais A, Wallraff A. 2008. Resolving vacuum fluctuations in an electrical circuit by measuring the lamb shift. Science. 322(5906), 1357–1360.","ieee":"A. Fragner <i>et al.</i>, “Resolving vacuum fluctuations in an electrical circuit by measuring the lamb shift,” <i>Science</i>, vol. 322, no. 5906. American Association for the Advancement of Science, pp. 1357–1360, 2008.","apa":"Fragner, A., Göppl, M., Fink, J. M., Baur, M., Bianchetti, R., Leek, P., … Wallraff, A. (2008). Resolving vacuum fluctuations in an electrical circuit by measuring the lamb shift. <i>Science</i>. American Association for the Advancement of Science. <a href=\"https://doi.org/10.1126/science.1164482\">https://doi.org/10.1126/science.1164482</a>","ama":"Fragner A, Göppl M, Fink JM, et al. Resolving vacuum fluctuations in an electrical circuit by measuring the lamb shift. <i>Science</i>. 2008;322(5906):1357-1360. doi:<a href=\"https://doi.org/10.1126/science.1164482\">10.1126/science.1164482</a>","mla":"Fragner, A., et al. “Resolving Vacuum Fluctuations in an Electrical Circuit by Measuring the Lamb Shift.” <i>Science</i>, vol. 322, no. 5906, American Association for the Advancement of Science, 2008, pp. 1357–60, doi:<a href=\"https://doi.org/10.1126/science.1164482\">10.1126/science.1164482</a>.","chicago":"Fragner, A, M Göppl, Johannes M Fink, Matthias Baur, R Bianchetti, Peter Leek, Alexandre Blais, and Andreas Wallraff. “Resolving Vacuum Fluctuations in an Electrical Circuit by Measuring the Lamb Shift.” <i>Science</i>. American Association for the Advancement of Science, 2008. <a href=\"https://doi.org/10.1126/science.1164482\">https://doi.org/10.1126/science.1164482</a>."},"quality_controlled":0,"volume":322,"publisher":"American Association for the Advancement of Science","doi":"10.1126/science.1164482","publist_id":"5357","extern":1},{"day":"01","date_created":"2018-12-11T11:53:53Z","author":[{"full_name":"Göppl, M","last_name":"Göppl","first_name":"M"},{"first_name":"A","last_name":"Fragner","full_name":"Fragner, A"},{"last_name":"Baur","first_name":"Matthias","full_name":"Baur, Matthias P"},{"full_name":"Bianchetti, R","first_name":"R","last_name":"Bianchetti"},{"full_name":"Filipp, Stefan","last_name":"Filipp","first_name":"Stefan"},{"first_name":"Johannes M","last_name":"Fink","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8112-028X","full_name":"Johannes Fink"},{"first_name":"Peter","last_name":"Leek","full_name":"Leek, Peter J"},{"full_name":"Puebla, G","first_name":"G","last_name":"Puebla"},{"full_name":"Steffen, L. Kraig","first_name":"L.","last_name":"Steffen"},{"first_name":"Andreas","last_name":"Wallraff","full_name":"Wallraff, Andreas"}],"year":"2008","abstract":[{"lang":"eng","text":"High quality on-chip microwave resonators have recently found prominent new applications in quantum optics and quantum information processing experiments with superconducting electronic circuits, a field now known as circuit quantum electrodynamics (QED). They are also used as single photon detectors and parametric amplifiers. Here we analyze the physical properties of coplanar waveguide resonators and their relation to the materials properties for use in circuit QED. We have designed and fabricated resonators with fundamental frequencies from 2 to 9 GHz and quality factors ranging from a few hundreds to a several hundred thousands controlled by appropriately designed input and output coupling capacitors. The microwave transmission spectra measured at temperatures of 20 mK are shown to be in good agreement with theoretical lumped element and distributed element transmission matrix models. In particular, the experimentally determined resonance frequencies, quality factors, and insertion losses are fully and consistently explained by the two models for all measured devices. The high level of control and flexibility in design renders these resonators ideal for storing and manipulating quantum electromagnetic fields in integrated superconducting electronic circuits."}],"acknowledgement":"This work was supported by Swiss National Fund (SNF) and ETH Zürich. P.J.L. was supported by the EC with a MC-EIF","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/0807.4094"}],"_id":"1765","publication_status":"published","date_updated":"2021-01-12T06:53:03Z","title":"Coplanar waveguide resonators for circuit quantum electrodynamics","issue":"11","type":"journal_article","status":"public","month":"01","intvolume":"       104","date_published":"2008-01-01T00:00:00Z","publication":"Journal of Applied Physics","oa":1,"citation":{"ieee":"M. Göppl <i>et al.</i>, “Coplanar waveguide resonators for circuit quantum electrodynamics,” <i>Journal of Applied Physics</i>, vol. 104, no. 11. American Institute of Physics, 2008.","ista":"Göppl M, Fragner A, Baur M, Bianchetti R, Filipp S, Fink JM, Leek P, Puebla G, Steffen L, Wallraff A. 2008. Coplanar waveguide resonators for circuit quantum electrodynamics. Journal of Applied Physics. 104(11).","short":"M. Göppl, A. Fragner, M. Baur, R. Bianchetti, S. Filipp, J.M. Fink, P. Leek, G. Puebla, L. Steffen, A. Wallraff, Journal of Applied Physics 104 (2008).","chicago":"Göppl, M, A Fragner, Matthias Baur, R Bianchetti, Stefan Filipp, Johannes M Fink, Peter Leek, G Puebla, L. Steffen, and Andreas Wallraff. “Coplanar Waveguide Resonators for Circuit Quantum Electrodynamics.” <i>Journal of Applied Physics</i>. American Institute of Physics, 2008. <a href=\"https://doi.org/10.1063/1.3010859\">https://doi.org/10.1063/1.3010859</a>.","mla":"Göppl, M., et al. “Coplanar Waveguide Resonators for Circuit Quantum Electrodynamics.” <i>Journal of Applied Physics</i>, vol. 104, no. 11, American Institute of Physics, 2008, doi:<a href=\"https://doi.org/10.1063/1.3010859\">10.1063/1.3010859</a>.","apa":"Göppl, M., Fragner, A., Baur, M., Bianchetti, R., Filipp, S., Fink, J. M., … Wallraff, A. (2008). Coplanar waveguide resonators for circuit quantum electrodynamics. <i>Journal of Applied Physics</i>. American Institute of Physics. <a href=\"https://doi.org/10.1063/1.3010859\">https://doi.org/10.1063/1.3010859</a>","ama":"Göppl M, Fragner A, Baur M, et al. Coplanar waveguide resonators for circuit quantum electrodynamics. <i>Journal of Applied Physics</i>. 2008;104(11). doi:<a href=\"https://doi.org/10.1063/1.3010859\">10.1063/1.3010859</a>"},"quality_controlled":0,"volume":104,"publisher":"American Institute of Physics","doi":"10.1063/1.3010859","extern":1,"publist_id":"5355"},{"scopus_import":"1","article_processing_charge":"No","citation":{"chicago":"Kramer, R. H., and Zoltán Haiman. “The Thickness of High-Redshift Quasar Ionization Fronts as a Constraint on the Ionizing Spectral Energy Distribution.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2008. <a href=\"https://doi.org/10.1111/j.1365-2966.2008.12945.x\">https://doi.org/10.1111/j.1365-2966.2008.12945.x</a>.","mla":"Kramer, R. H., and Zoltán Haiman. “The Thickness of High-Redshift Quasar Ionization Fronts as a Constraint on the Ionizing Spectral Energy Distribution.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 385, no. 3, Oxford University Press, 2008, pp. 1561–75, doi:<a href=\"https://doi.org/10.1111/j.1365-2966.2008.12945.x\">10.1111/j.1365-2966.2008.12945.x</a>.","apa":"Kramer, R. H., &#38; Haiman, Z. (2008). The thickness of high-redshift quasar ionization fronts as a constraint on the ionizing spectral energy distribution. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1111/j.1365-2966.2008.12945.x\">https://doi.org/10.1111/j.1365-2966.2008.12945.x</a>","ama":"Kramer RH, Haiman Z. The thickness of high-redshift quasar ionization fronts as a constraint on the ionizing spectral energy distribution. <i>Monthly Notices of the Royal Astronomical Society</i>. 2008;385(3):1561-1575. doi:<a href=\"https://doi.org/10.1111/j.1365-2966.2008.12945.x\">10.1111/j.1365-2966.2008.12945.x</a>","ieee":"R. H. Kramer and Z. Haiman, “The thickness of high-redshift quasar ionization fronts as a constraint on the ionizing spectral energy distribution,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 385, no. 3. Oxford University Press, pp. 1561–1575, 2008.","short":"R.H. Kramer, Z. Haiman, Monthly Notices of the Royal Astronomical Society 385 (2008) 1561–1575.","ista":"Kramer RH, Haiman Z. 2008. The thickness of high-redshift quasar ionization fronts as a constraint on the ionizing spectral energy distribution. Monthly Notices of the Royal Astronomical Society. 385(3), 1561–1575."},"quality_controlled":"1","volume":385,"extern":"1","doi":"10.1111/j.1365-2966.2008.12945.x","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","issue":"3","type":"journal_article","date_updated":"2024-09-25T13:54:14Z","date_published":"2008-03-13T00:00:00Z","month":"03","publication":"Monthly Notices of the Royal Astronomical Society","status":"public","page":"1561-1575","author":[{"full_name":"Kramer, R. H.","last_name":"Kramer","first_name":"R. H."},{"last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán","full_name":"Haiman, Zoltán"}],"language":[{"iso":"eng"}],"date_created":"2024-09-06T09:09:01Z","day":"13","article_type":"original","publication_identifier":{"issn":["0035-8711","1365-2966"]},"publisher":"Oxford University Press","oa_version":"Published Version","publication_status":"published","_id":"17721","title":"The thickness of high-redshift quasar ionization fronts as a constraint on the ionizing spectral energy distribution","intvolume":"       385","oa":1,"main_file_link":[{"url":"https://doi.org/10.1111/j.1365-2966.2008.12945.x","open_access":"1"}],"year":"2008","abstract":[{"lang":"eng","text":"High-redshift quasars (z >~ 6) drive ionization fronts into the intergalactic medium (IGM). If the thickness of the front can be measured, it can provide a novel constraint on the ionizing spectral energy distribution (SED). Here we follow the propagation of an I-front into a uniform IGM, and compute its thickness for a range of possible quasar spectra and ages. We also explore the effects of uniform and non-uniform ionizing backgrounds. We find that even for hard spectra, the fronts are initially thin, with a thickness much smaller than the mean free path of ionizing photons, but the thickness increases as the front approaches equilibrium in 10^8 - 10^9 years, and can eventually significantly exceed simple estimates based on the mean free path. With a high intrinsic hydrogen column density obscuring the source (log(N_H/cm^-2) >~ 19.2) or a hard power-law spectrum combined with some obscuration (e.g. dlog(F_\\nu)/dlog(\\nu) >~ -1.2 at log(N_H/cm^-2) >~ 18.0), the thickness of the front exceeds ~1 physical Mpc and may be measurable from the morphology of its redshifted 21cm signal. We find that the highly ionized inner part of the front, which may be probed by Lyman line absorption spectra, remains sharp for bright quasars unless a large obscuring column (log(N_H/cm^-2) >~ 19.2) removes most of their ionizing photons up to ~40 eV. For obscured sources with log(N_H/cm^-2) >~ 19.8, embedded in a significantly neutral IGM, the black Lyman-alpha trough (where the neutral fraction is ~10^-3) underestimates the size of the HII region by a factor of >~4."}]},{"volume":684,"citation":{"short":"B. Kocsis, Z. Haiman, K. Menou, The Astrophysical Journal 684 (2008) 870–887.","ista":"Kocsis B, Haiman Z, Menou K. 2008. Premerger localization of gravitational wave standard sirens with LISA: Triggered search for an electromagnetic counterpart. The Astrophysical Journal. 684(2), 870–887.","ieee":"B. Kocsis, Z. Haiman, and K. Menou, “Premerger localization of gravitational wave standard sirens with LISA: Triggered search for an electromagnetic counterpart,” <i>The Astrophysical Journal</i>, vol. 684, no. 2. American Astronomical Society, pp. 870–887, 2008.","ama":"Kocsis B, Haiman Z, Menou K. Premerger localization of gravitational wave standard sirens with LISA: Triggered search for an electromagnetic counterpart. <i>The Astrophysical Journal</i>. 2008;684(2):870-887. doi:<a href=\"https://doi.org/10.1086/590230\">10.1086/590230</a>","apa":"Kocsis, B., Haiman, Z., &#38; Menou, K. (2008). Premerger localization of gravitational wave standard sirens with LISA: Triggered search for an electromagnetic counterpart. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.1086/590230\">https://doi.org/10.1086/590230</a>","mla":"Kocsis, Bence, et al. “Premerger Localization of Gravitational Wave Standard Sirens with LISA: Triggered Search for an Electromagnetic Counterpart.” <i>The Astrophysical Journal</i>, vol. 684, no. 2, American Astronomical Society, 2008, pp. 870–87, doi:<a href=\"https://doi.org/10.1086/590230\">10.1086/590230</a>.","chicago":"Kocsis, Bence, Zoltán Haiman, and Kristen Menou. “Premerger Localization of Gravitational Wave Standard Sirens with LISA: Triggered Search for an Electromagnetic Counterpart.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2008. <a href=\"https://doi.org/10.1086/590230\">https://doi.org/10.1086/590230</a>."},"quality_controlled":"1","doi":"10.1086/590230","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","extern":"1","scopus_import":"1","article_processing_charge":"No","language":[{"iso":"eng"}],"date_created":"2024-09-06T09:18:47Z","day":"10","author":[{"first_name":"Bence","last_name":"Kocsis","full_name":"Kocsis, Bence"},{"id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","first_name":"Zoltán","full_name":"Haiman, Zoltán"},{"full_name":"Menou, Kristen","first_name":"Kristen","last_name":"Menou"}],"article_type":"original","date_updated":"2024-09-26T07:56:49Z","issue":"2","type":"journal_article","page":"870-887","status":"public","publication":"The Astrophysical Journal","month":"09","date_published":"2008-09-10T00:00:00Z","publisher":"American Astronomical Society","publication_identifier":{"issn":["0004-637X","1538-4357"]},"abstract":[{"lang":"eng","text":"Electromagnetic (EM) counterparts to supermassive black hole binary mergers observed by LISA can be localized to within the field of view of astronomical instruments ~10 deg^2 hours to weeks prior to coalescence. The temporal coincidence of any prompt EM counterpart with a gravitationally-timed merger may offer the best chance of identifying a unique host galaxy. We discuss the challenges posed by searches for prompt EM counterparts and propose novel observational strategies to address them. In particular, we discuss the size and shape evolution of the LISA localization error ellipses on the sky, and quantify the requirements for dedicated EM surveys of the area prior to coalescence. A triggered EM counterpart search campaign will require monitoring a several-square degree area. It could aim for variability at the 24-27 mag level in optical bands, for example, which corresponds to 1-10% of the Eddington luminosity of the prime LISA sources of 10^6-10^7 Msun BHs at z=1-2, on time-scales of minutes to hours, the orbital time-scale of the binary in the last 2-4 weeks. A cross-correlation of the period of any variable EM signal with the quasi-periodic gravitational waveform over 10-1000 cycles may aid the detection. Alternatively, EM searches can detect a transient signal accompanying the coalescence. We highlight the measurement of differences in the arrival times of photons and gravitons from the same cosmological source as a valuable independent test of the massive character of gravity, and of possible violations of Lorentz invariance in the gravity sector."}],"year":"2008","main_file_link":[{"url":"https://doi.org/10.1086/590230","open_access":"1"}],"title":"Premerger localization of gravitational wave standard sirens with LISA: Triggered search for an electromagnetic counterpart","publication_status":"published","_id":"17734","oa_version":"Published Version","oa":1,"intvolume":"       684"},{"article_processing_charge":"No","publication_identifier":{"issn":["0094-243X"]},"scopus_import":"1","extern":"1","doi":"10.1063/1.2905582","publisher":"American Institute of Physics","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","citation":{"chicago":"Bryan, Greg L., Ian D. McGreer, Andrei Mesinger, and Zoltán Haiman. “Feedback Effects on Population III Star Formation.” In <i>AIP Conference Proceedings</i>. American Institute of Physics, 2008. <a href=\"https://doi.org/10.1063/1.2905582\">https://doi.org/10.1063/1.2905582</a>.","mla":"Bryan, Greg L., et al. “Feedback Effects on Population III Star Formation.” <i>AIP Conference Proceedings</i>, American Institute of Physics, 2008, doi:<a href=\"https://doi.org/10.1063/1.2905582\">10.1063/1.2905582</a>.","apa":"Bryan, G. L., McGreer, I. D., Mesinger, A., &#38; Haiman, Z. (2008). Feedback effects on population III star formation. In <i>AIP Conference Proceedings</i>. Santa Fe, NM, United States: American Institute of Physics. <a href=\"https://doi.org/10.1063/1.2905582\">https://doi.org/10.1063/1.2905582</a>","ama":"Bryan GL, McGreer ID, Mesinger A, Haiman Z. Feedback effects on population III star formation. In: <i>AIP Conference Proceedings</i>. American Institute of Physics; 2008. doi:<a href=\"https://doi.org/10.1063/1.2905582\">10.1063/1.2905582</a>","ieee":"G. L. Bryan, I. D. McGreer, A. Mesinger, and Z. Haiman, “Feedback effects on population III star formation,” in <i>AIP Conference Proceedings</i>, Santa Fe, NM, United States, 2008.","ista":"Bryan GL, McGreer ID, Mesinger A, Haiman Z. 2008. Feedback effects on population III star formation. AIP Conference Proceedings. FIRST STARS III: First Stars II Conference.","short":"G.L. Bryan, I.D. McGreer, A. Mesinger, Z. Haiman, in:, AIP Conference Proceedings, American Institute of Physics, 2008."},"quality_controlled":"1","publication":"AIP Conference Proceedings","month":"03","date_published":"2008-03-11T00:00:00Z","status":"public","oa_version":"None","type":"conference","title":"Feedback effects on population III star formation","_id":"17751","date_updated":"2024-09-30T07:46:06Z","publication_status":"published","main_file_link":[{"url":"https://doi.org/10.1063/1.2905582"}],"abstract":[{"text":"With the help of numerical simulations, we examine two aspects of feedback from the first generation of stars on later star formation. First, we investigate the impact of relic HII regions on forming halos. We find that the positive and negative effects of such feedback nearly cancel because the increase in entropy due to heating is balanced by the increase in the H 2 fraction due to the free electrons. However, these halos can be delayed more easily by a background Lyman-Werner flux. Second, we show that HD cooling is important in halos which have been ionized and allowed to recombine. Gas is allowed to cool to the CMB temperature at densities around n∼10 4cm-3, reducing the accreted mass by a factor of a few. However, as the collapse proceeds, the central gas density exceeds the critical density of HD and heats until HD cooling is no longer important. Therefore the behaviour of the (smaller mass) core is relatively unaffected by HD cooling.","lang":"eng"}],"year":"2008","author":[{"full_name":"Bryan, Greg L.","last_name":"Bryan","first_name":"Greg L."},{"first_name":"Ian D.","last_name":"McGreer","full_name":"McGreer, Ian D."},{"last_name":"Mesinger","first_name":"Andrei","full_name":"Mesinger, Andrei"},{"full_name":"Haiman, Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán"}],"conference":{"name":"FIRST STARS III: First Stars II Conference","end_date":"2007-07-20","location":"Santa Fe, NM, United States","start_date":"2007-07-15"},"language":[{"iso":"eng"}],"date_created":"2024-09-06T09:39:10Z","day":"11"},{"volume":676,"quality_controlled":"1","citation":{"ista":"Lippai Z, Frei Z, Haiman Z. 2008. Prompt shocks in the gas disk around a recoiling supermassive black hole binary. The Astrophysical Journal. 676(1), L5–L8.","short":"Z. Lippai, Z. Frei, Z. Haiman, The Astrophysical Journal 676 (2008) L5–L8.","ieee":"Z. Lippai, Z. Frei, and Z. Haiman, “Prompt shocks in the gas disk around a recoiling supermassive black hole binary,” <i>The Astrophysical Journal</i>, vol. 676, no. 1. American Astronomical Society, pp. L5–L8, 2008.","ama":"Lippai Z, Frei Z, Haiman Z. Prompt shocks in the gas disk around a recoiling supermassive black hole binary. <i>The Astrophysical Journal</i>. 2008;676(1):L5-L8. doi:<a href=\"https://doi.org/10.1086/587034\">10.1086/587034</a>","apa":"Lippai, Z., Frei, Z., &#38; Haiman, Z. (2008). Prompt shocks in the gas disk around a recoiling supermassive black hole binary. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.1086/587034\">https://doi.org/10.1086/587034</a>","mla":"Lippai, Zoltán, et al. “Prompt Shocks in the Gas Disk around a Recoiling Supermassive Black Hole Binary.” <i>The Astrophysical Journal</i>, vol. 676, no. 1, American Astronomical Society, 2008, pp. L5–8, doi:<a href=\"https://doi.org/10.1086/587034\">10.1086/587034</a>.","chicago":"Lippai, Zoltán, Zsolt Frei, and Zoltán Haiman. “Prompt Shocks in the Gas Disk around a Recoiling Supermassive Black Hole Binary.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2008. <a href=\"https://doi.org/10.1086/587034\">https://doi.org/10.1086/587034</a>."},"extern":"1","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1086/587034","scopus_import":"1","article_processing_charge":"No","author":[{"last_name":"Lippai","first_name":"Zoltán","full_name":"Lippai, Zoltán"},{"first_name":"Zsolt","last_name":"Frei","full_name":"Frei, Zsolt"},{"full_name":"Haiman, Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán"}],"language":[{"iso":"eng"}],"day":"20","date_created":"2024-09-06T09:40:05Z","article_type":"original","issue":"1","type":"journal_article","date_updated":"2024-09-30T07:50:45Z","publication":"The Astrophysical Journal","date_published":"2008-03-20T00:00:00Z","month":"03","page":"L5-L8","status":"public","publisher":"American Astronomical Society","publication_identifier":{"issn":["0004-637X","1538-4357"]},"main_file_link":[{"url":"https://doi.org/10.1086/587034","open_access":"1"}],"abstract":[{"lang":"eng","text":"Supermassive black hole binaries (BHBs) produced in galaxy mergers recoil at the time of their coalescence due to the emission of gravitational waves (GWs). We simulate the response of a thin, 2D disk of collisionless particles, initially on circular orbits around a 10^6 M_sun BHB, to kicks that are either parallel or perpendicular to the initial orbital plane. Typical kick velocities (v_k) can exceed the sound speed in a circumbinary gas disk. While the inner disk is strongly bound to the recoiling binary, the outer disk is only weakly bound or unbound. This leads to differential motions in the disturbed disk that increase with radius and can become supersonic at ~700 Schwarzschild radii for v_k ~500 km/s, implying that shocks form beyond this radius. We indeed find that kicks in the disk plane lead to immediate strong density enhancements (within weeks) in a tightly wound spiral caustic, propagating outward at the speed v_k. Concentric density enhancements are also observed for kicks perpendicular to the disk, but are weaker and develop into caustics only after a long delay (>1 year). Unless both BH spins are low or precisely aligned with the orbital angular momentum, a significant fraction (> several %) of kicks are sufficiently large and well aligned with the orbital plane for strong shocks to be produced. The shocks could result in an afterglow whose characteristic photon energy increases with time, from the UV (~10eV) to the soft X-ray (~100eV) range, between one month and one year after the merger. This could help identify EM counterparts to GW sources discovered by LISA."}],"year":"2008","oa_version":"Published Version","title":"Prompt shocks in the gas disk around a recoiling supermassive black hole binary","_id":"17752","publication_status":"published","oa":1,"intvolume":"       676"},{"issue":"1","type":"journal_article","date_updated":"2024-09-30T08:39:17Z","publication":"The Astrophysical Journal","month":"01","date_published":"2008-01-01T00:00:00Z","page":"33-39","status":"public","author":[{"full_name":"Hernandez‐Monteagudo, Carlos","last_name":"Hernandez‐Monteagudo","first_name":"Carlos"},{"full_name":"Haiman, Zoltán","first_name":"Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman"},{"full_name":"Verde, Licia","first_name":"Licia","last_name":"Verde"},{"first_name":"Raul","last_name":"Jimenez","full_name":"Jimenez, Raul"}],"date_created":"2024-09-06T09:44:50Z","day":"01","language":[{"iso":"eng"}],"article_type":"original","scopus_import":"1","article_processing_charge":"No","volume":672,"quality_controlled":"1","citation":{"short":"C. Hernandez‐Monteagudo, Z. Haiman, L. Verde, R. Jimenez, The Astrophysical Journal 672 (2008) 33–39.","ista":"Hernandez‐Monteagudo C, Haiman Z, Verde L, Jimenez R. 2008. Oxygen pumping. II. Probing the inhomogeneous metal enrichment at the epoch of reionization with high‐frequency CMB observations. The Astrophysical Journal. 672(1), 33–39.","ieee":"C. Hernandez‐Monteagudo, Z. Haiman, L. Verde, and R. Jimenez, “Oxygen pumping. II. Probing the inhomogeneous metal enrichment at the epoch of reionization with high‐frequency CMB observations,” <i>The Astrophysical Journal</i>, vol. 672, no. 1. American Astronomical Society, pp. 33–39, 2008.","ama":"Hernandez‐Monteagudo C, Haiman Z, Verde L, Jimenez R. Oxygen pumping. II. Probing the inhomogeneous metal enrichment at the epoch of reionization with high‐frequency CMB observations. <i>The Astrophysical Journal</i>. 2008;672(1):33-39. doi:<a href=\"https://doi.org/10.1086/523872\">10.1086/523872</a>","apa":"Hernandez‐Monteagudo, C., Haiman, Z., Verde, L., &#38; Jimenez, R. (2008). Oxygen pumping. II. Probing the inhomogeneous metal enrichment at the epoch of reionization with high‐frequency CMB observations. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.1086/523872\">https://doi.org/10.1086/523872</a>","mla":"Hernandez‐Monteagudo, Carlos, et al. “Oxygen Pumping. II. Probing the Inhomogeneous Metal Enrichment at the Epoch of Reionization with High‐frequency CMB Observations.” <i>The Astrophysical Journal</i>, vol. 672, no. 1, American Astronomical Society, 2008, pp. 33–39, doi:<a href=\"https://doi.org/10.1086/523872\">10.1086/523872</a>.","chicago":"Hernandez‐Monteagudo, Carlos, Zoltán Haiman, Licia Verde, and Raul Jimenez. “Oxygen Pumping. II. Probing the Inhomogeneous Metal Enrichment at the Epoch of Reionization with High‐frequency CMB Observations.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2008. <a href=\"https://doi.org/10.1086/523872\">https://doi.org/10.1086/523872</a>."},"extern":"1","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1086/523872","oa_version":"Published Version","title":"Oxygen pumping. II. Probing the inhomogeneous metal enrichment at the epoch of reionization with high‐frequency CMB observations","publication_status":"published","_id":"17756","oa":1,"intvolume":"       672","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1086/523872"}],"abstract":[{"text":"At the epoch of reionization, when the high-redshift inter-galactic medium (IGM) is being enriched with metals, the 63.2 micron fine structure line of OI is pumped by the ~ 1300 AA soft UV background and introduces a spectral distortion in the Cosmic Microwave Background (CMB). Here we use a toy model for the spatial distribution of neutral oxygen, assuming metal bubbles surround dark matter halos, and compute the fluctuations of this distortion, and the angular power spectrum it imprints on the CMB. We discuss the dependence of the power spectrum on the velocity of the winds polluting the IGM with metals, the minimum mass of the halos producing these winds, and on the cosmic epoch when the OI pumping occurs. We find that, although the clustering signal of the CMB distortion is weak \\delta y_{rms} ~ 10^{-7} (roughly corresponding to a temperature anisotropy of few nK), it may be reachable in deep integrations with high-sensitivity infrared detectors. Even without a detection, these instruments should be able to useful constraints on the heavy element enrichment history of the IGM.","lang":"eng"}],"year":"2008","publication_identifier":{"issn":["0004-637X","1538-4357"]},"publisher":"American Astronomical Society"},{"article_processing_charge":"No","scopus_import":"1","doi":"10.1103/physrevd.78.103509","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","extern":"1","quality_controlled":"1","citation":{"chicago":"Fang, Wenjuan, Sheng Wang, Wayne Hu, Zoltán Haiman, Lam Hui, and Morgan May. “Challenges to the DGP Model from Horizon-Scale Growth and Geometry.” <i>Physical Review D</i>. American Physical Society, 2008. <a href=\"https://doi.org/10.1103/physrevd.78.103509\">https://doi.org/10.1103/physrevd.78.103509</a>.","mla":"Fang, Wenjuan, et al. “Challenges to the DGP Model from Horizon-Scale Growth and Geometry.” <i>Physical Review D</i>, vol. 78, no. 10, 103509, American Physical Society, 2008, doi:<a href=\"https://doi.org/10.1103/physrevd.78.103509\">10.1103/physrevd.78.103509</a>.","ama":"Fang W, Wang S, Hu W, Haiman Z, Hui L, May M. Challenges to the DGP model from horizon-scale growth and geometry. <i>Physical Review D</i>. 2008;78(10). doi:<a href=\"https://doi.org/10.1103/physrevd.78.103509\">10.1103/physrevd.78.103509</a>","apa":"Fang, W., Wang, S., Hu, W., Haiman, Z., Hui, L., &#38; May, M. (2008). Challenges to the DGP model from horizon-scale growth and geometry. <i>Physical Review D</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevd.78.103509\">https://doi.org/10.1103/physrevd.78.103509</a>","ieee":"W. Fang, S. Wang, W. Hu, Z. Haiman, L. Hui, and M. May, “Challenges to the DGP model from horizon-scale growth and geometry,” <i>Physical Review D</i>, vol. 78, no. 10. American Physical Society, 2008.","short":"W. Fang, S. Wang, W. Hu, Z. Haiman, L. Hui, M. May, Physical Review D 78 (2008).","ista":"Fang W, Wang S, Hu W, Haiman Z, Hui L, May M. 2008. Challenges to the DGP model from horizon-scale growth and geometry. Physical Review D. 78(10), 103509."},"volume":78,"status":"public","date_published":"2008-11-10T00:00:00Z","month":"11","publication":"Physical Review D","date_updated":"2024-09-30T09:16:05Z","issue":"10","type":"journal_article","article_type":"original","language":[{"iso":"eng"}],"date_created":"2024-09-06T09:49:53Z","day":"10","author":[{"full_name":"Fang, Wenjuan","last_name":"Fang","first_name":"Wenjuan"},{"full_name":"Wang, Sheng","last_name":"Wang","first_name":"Sheng"},{"full_name":"Hu, Wayne","first_name":"Wayne","last_name":"Hu"},{"full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","first_name":"Zoltán"},{"first_name":"Lam","last_name":"Hui","full_name":"Hui, Lam"},{"first_name":"Morgan","last_name":"May","full_name":"May, Morgan"}],"publication_identifier":{"issn":["1550-7998","1550-2368"]},"external_id":{"arxiv":["0808.2208"]},"publisher":"American Physical Society","article_number":"103509","intvolume":"        78","oa":1,"publication_status":"published","_id":"17762","title":"Challenges to the DGP model from horizon-scale growth and geometry","oa_version":"Preprint","year":"2008","abstract":[{"lang":"eng","text":"We conduct a Markov Chain Monte Carlo study of the Dvali-Gabadadze-Porrati self-accelerating braneworld scenario given the cosmic microwave background (CMB) anisotropy, supernovae and Hubble constant data by implementing an effective dark energy prescription for modified gravity into a standard Einstein-Boltzmann code. We find no way to alleviate the tension between distance measures and horizon-scale growth in this model. Growth alterations due to perturbations propagating into the bulk appear as excess CMB anisotropy at the lowest multipoles. In a flat cosmology, the maximum likelihood Dvali-Gabadadze-Porrati model is nominally a 5.3⁢𝜎 poorer fit than 𝛬⁢CDM. Curvature can reduce the tension between distance measures but only at the expense of exacerbating the problem with growth leading to a 4.8⁢𝜎 result that is dominated by the low multipole CMB temperature spectrum. While changing the initial conditions to reduce large-scale power can flatten the temperature spectrum, this also suppresses the large angle polarization spectrum in violation of recent results from the five-year Wilkinson Microwave Anisotropy Probe. The failure of this model highlights the power of combining growth and distance measures in cosmology as a test of gravity on the largest scales."}],"main_file_link":[{"url":" https://doi.org/10.48550/arXiv.0808.2208","open_access":"1"}],"arxiv":1},{"article_type":"original","date_created":"2024-09-06T10:02:53Z","language":[{"iso":"eng"}],"day":"01","author":[{"full_name":"Menou, Kristen","first_name":"Kristen","last_name":"Menou"},{"first_name":"Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","full_name":"Haiman, Zoltán"},{"full_name":"Kocsis, Bence","last_name":"Kocsis","first_name":"Bence"}],"status":"public","page":"884-890","date_published":"2008-05-01T00:00:00Z","month":"05","publication":"New Astronomy Reviews","date_updated":"2024-09-30T11:28:25Z","type":"journal_article","issue":"10-12","doi":"10.1016/j.newar.2008.03.020","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","extern":"1","citation":{"chicago":"Menou, Kristen, Zoltán Haiman, and Bence Kocsis. “Cosmological Physics with Black Holes (and Possibly White Dwarfs).” <i>New Astronomy Reviews</i>. Elsevier BV, 2008. <a href=\"https://doi.org/10.1016/j.newar.2008.03.020\">https://doi.org/10.1016/j.newar.2008.03.020</a>.","mla":"Menou, Kristen, et al. “Cosmological Physics with Black Holes (and Possibly White Dwarfs).” <i>New Astronomy Reviews</i>, vol. 51, no. 10–12, Elsevier BV, 2008, pp. 884–90, doi:<a href=\"https://doi.org/10.1016/j.newar.2008.03.020\">10.1016/j.newar.2008.03.020</a>.","apa":"Menou, K., Haiman, Z., &#38; Kocsis, B. (2008). Cosmological physics with black holes (and possibly white dwarfs). <i>New Astronomy Reviews</i>. Elsevier BV. <a href=\"https://doi.org/10.1016/j.newar.2008.03.020\">https://doi.org/10.1016/j.newar.2008.03.020</a>","ama":"Menou K, Haiman Z, Kocsis B. Cosmological physics with black holes (and possibly white dwarfs). <i>New Astronomy Reviews</i>. 2008;51(10-12):884-890. doi:<a href=\"https://doi.org/10.1016/j.newar.2008.03.020\">10.1016/j.newar.2008.03.020</a>","ieee":"K. Menou, Z. Haiman, and B. Kocsis, “Cosmological physics with black holes (and possibly white dwarfs),” <i>New Astronomy Reviews</i>, vol. 51, no. 10–12. Elsevier BV, pp. 884–890, 2008.","ista":"Menou K, Haiman Z, Kocsis B. 2008. Cosmological physics with black holes (and possibly white dwarfs). New Astronomy Reviews. 51(10–12), 884–890.","short":"K. Menou, Z. Haiman, B. Kocsis, New Astronomy Reviews 51 (2008) 884–890."},"quality_controlled":"1","volume":51,"article_processing_charge":"No","scopus_import":"1","year":"2008","abstract":[{"text":"The notion that microparsec-scale black holes can be used to probe gigaparsec-scale physics may seem counterintuitive, at first. Yet, the gravitational observatory LISA will detect cosmologically-distant coalescing pairs of massive black holes, accurately measure their luminosity distance and help identify an electromagnetic counterpart or a host galaxy. A wide variety of new black hole studies and a gravitational version of Hubble’s diagram become possible, if host galaxies are successfully identified. Furthermore, if dark energy is a manifestation of large-scale modified gravity, deviations from general relativistic expectations could become apparent in a gravitational signal propagated over cosmological scales, especially when compared to the electromagnetic signal from a same source. Finally, since inspirals of white dwarfs into massive black holes at cosmological distances may permit pre-merger localizations, we suggest that careful monitoring of these events and any associated electromagnetic counterpart could lead to high-precision cosmological measurements with LISA.","lang":"eng"}],"main_file_link":[{"url":" https://doi.org/10.48550/arXiv.0803.3627","open_access":"1"}],"arxiv":1,"intvolume":"        51","oa":1,"_id":"17773","publication_status":"published","title":"Cosmological physics with black holes (and possibly white dwarfs)","oa_version":"Preprint","publisher":"Elsevier BV","publication_identifier":{"issn":["1387-6473"]},"external_id":{"arxiv":["0803.3627"]}},{"publisher":"Oxford University Press","publication_identifier":{"issn":["0035-8711","1365-2966"]},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1111/j.1365-2966.2008.14031.x"}],"abstract":[{"text":"The earliest generation of stars and black holes must have established an early ‘Lyman–Werner’ background (LWB) at high redshift, prior to the epoch of reionization. Because of the long mean free path of photons with energies hν < 13.6 eV, the LWB was nearly uniform. However, some variation in the LWB is expected due to the discrete nature of the sources, and their highly clustered spatial distribution. In this paper, we compute the probability distribution function (PDF) of the LW flux that irradiates dark matter (DM) haloes collapsing at high redshift (z≈ 10). Our model accounts for (i) the clustering of DM haloes, (ii) Poisson fluctuations in the number of corresponding star-forming galaxies and (iii) scatter in the LW luminosity produced by haloes of a given mass (calibrated using local observations). We find that >99 per cent of the DM haloes are illuminated by an LW flux within a factor of 2 of the global mean value. However, a small fraction, ∼10^−8 to 10^−6, of DM haloes with virial temperatures Tvir≳ 10^4 K have a close luminous neighbour within ≲10 kpc, and are exposed to an LW flux exceeding the global mean by a factor of >20, or to J21,LW > 10^3 (in units of 10^−21 erg s^−1 Hz^−1 sr^−1 cm^−2). This large LW flux can photodissociate H2 molecules in the gas collapsing due to atomic cooling in these haloes, and prevent its further cooling and fragmentation. Such close halo pairs therefore provide possible sites in which primordial gas clouds collapse directly into massive black holes (MBH≈ 10^4−6M⊙), and subsequently grow into supermassive (MBH≳ 10^9M⊙) black holes by z≈ 6.","lang":"eng"}],"year":"2008","oa":1,"intvolume":"       391","oa_version":"Published Version","title":"Fluctuations in the high-redshift Lyman-Werner background: Close halo pairs as the origin of supermassive black holes","publication_status":"published","_id":"17778","extern":"1","doi":"10.1111/j.1365-2966.2008.14031.x","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","volume":391,"citation":{"chicago":"Dijkstra, Mark, Zoltán Haiman, Andrei Mesinger, and J. Stuart B. Wyithe. “Fluctuations in the High-Redshift Lyman-Werner Background: Close Halo Pairs as the Origin of Supermassive Black Holes.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2008. <a href=\"https://doi.org/10.1111/j.1365-2966.2008.14031.x\">https://doi.org/10.1111/j.1365-2966.2008.14031.x</a>.","mla":"Dijkstra, Mark, et al. “Fluctuations in the High-Redshift Lyman-Werner Background: Close Halo Pairs as the Origin of Supermassive Black Holes.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 391, no. 4, Oxford University Press, 2008, pp. 1961–72, doi:<a href=\"https://doi.org/10.1111/j.1365-2966.2008.14031.x\">10.1111/j.1365-2966.2008.14031.x</a>.","ama":"Dijkstra M, Haiman Z, Mesinger A, Wyithe JSB. Fluctuations in the high-redshift Lyman-Werner background: Close halo pairs as the origin of supermassive black holes. <i>Monthly Notices of the Royal Astronomical Society</i>. 2008;391(4):1961-1972. doi:<a href=\"https://doi.org/10.1111/j.1365-2966.2008.14031.x\">10.1111/j.1365-2966.2008.14031.x</a>","apa":"Dijkstra, M., Haiman, Z., Mesinger, A., &#38; Wyithe, J. S. B. (2008). Fluctuations in the high-redshift Lyman-Werner background: Close halo pairs as the origin of supermassive black holes. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1111/j.1365-2966.2008.14031.x\">https://doi.org/10.1111/j.1365-2966.2008.14031.x</a>","ieee":"M. Dijkstra, Z. Haiman, A. Mesinger, and J. S. B. Wyithe, “Fluctuations in the high-redshift Lyman-Werner background: Close halo pairs as the origin of supermassive black holes,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 391, no. 4. Oxford University Press, pp. 1961–1972, 2008.","short":"M. Dijkstra, Z. Haiman, A. Mesinger, J.S.B. Wyithe, Monthly Notices of the Royal Astronomical Society 391 (2008) 1961–1972.","ista":"Dijkstra M, Haiman Z, Mesinger A, Wyithe JSB. 2008. Fluctuations in the high-redshift Lyman-Werner background: Close halo pairs as the origin of supermassive black holes. Monthly Notices of the Royal Astronomical Society. 391(4), 1961–1972."},"quality_controlled":"1","article_processing_charge":"No","scopus_import":"1","article_type":"original","author":[{"last_name":"Dijkstra","first_name":"Mark","full_name":"Dijkstra, Mark"},{"id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","first_name":"Zoltán","full_name":"Haiman, Zoltán"},{"full_name":"Mesinger, Andrei","last_name":"Mesinger","first_name":"Andrei"},{"last_name":"Wyithe","first_name":"J. Stuart B.","full_name":"Wyithe, J. Stuart B."}],"language":[{"iso":"eng"}],"day":"11","date_created":"2024-09-06T10:13:39Z","publication":"Monthly Notices of the Royal Astronomical Society","date_published":"2008-12-11T00:00:00Z","month":"12","page":"1961-1972","status":"public","type":"journal_article","issue":"4","date_updated":"2024-09-30T11:57:59Z"},{"doi":"10.1086/591047","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","extern":"1","citation":{"mla":"Furlanetto, Steven R., et al. “Fossil Ionized Bubbles around Dead Quasars during Reionization.” <i>The Astrophysical Journal</i>, vol. 686, no. 1, American Astronomical Society, 2008, pp. 25–40, doi:<a href=\"https://doi.org/10.1086/591047\">10.1086/591047</a>.","apa":"Furlanetto, S. R., Haiman, Z., &#38; Oh, S. P. (2008). Fossil Ionized bubbles around dead quasars during reionization. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.1086/591047\">https://doi.org/10.1086/591047</a>","ama":"Furlanetto SR, Haiman Z, Oh SP. Fossil Ionized bubbles around dead quasars during reionization. <i>The Astrophysical Journal</i>. 2008;686(1):25-40. doi:<a href=\"https://doi.org/10.1086/591047\">10.1086/591047</a>","chicago":"Furlanetto, Steven R., Zoltán Haiman, and S. Peng Oh. “Fossil Ionized Bubbles around Dead Quasars during Reionization.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2008. <a href=\"https://doi.org/10.1086/591047\">https://doi.org/10.1086/591047</a>.","short":"S.R. Furlanetto, Z. Haiman, S.P. Oh, The Astrophysical Journal 686 (2008) 25–40.","ista":"Furlanetto SR, Haiman Z, Oh SP. 2008. Fossil Ionized bubbles around dead quasars during reionization. The Astrophysical Journal. 686(1), 25–40.","ieee":"S. R. Furlanetto, Z. Haiman, and S. P. Oh, “Fossil Ionized bubbles around dead quasars during reionization,” <i>The Astrophysical Journal</i>, vol. 686, no. 1. American Astronomical Society, pp. 25–40, 2008."},"quality_controlled":"1","volume":686,"article_processing_charge":"No","scopus_import":"1","article_type":"original","date_created":"2024-09-06T10:19:49Z","language":[{"iso":"eng"}],"day":"10","author":[{"full_name":"Furlanetto, Steven R.","first_name":"Steven R.","last_name":"Furlanetto"},{"full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","first_name":"Zoltán"},{"first_name":"S. Peng","last_name":"Oh","full_name":"Oh, S. Peng"}],"status":"public","page":"25-40","month":"10","date_published":"2008-10-10T00:00:00Z","publication":"The Astrophysical Journal","date_updated":"2024-09-30T13:04:56Z","issue":"1","type":"journal_article","publisher":"American Astronomical Society","publication_identifier":{"issn":["0004-637X","1538-4357"]},"year":"2008","abstract":[{"text":"One of the most dramatic signatures of the reionization era may be the enormous ionized bubbles around luminous quasars (with radii reaching ~40 comoving Mpc), which may survive as \"fossil\" ionized regions long after their source shuts off. Here we study how the inhomogeneous intergalactic medium (IGM) evolves inside such fossils. The average recombination rate declines rapidly with time, and the brief quasar episode significantly increases the mean free path inside the fossil bubbles. As a result, even a weak ionizing background generated by galaxies inside the fossil can maintain it in a relatively highly and uniformly ionized state. For example, galaxies that would ionize 20%-30% of hydrogen in a random patch of the IGM can maintain 80%-90% ionization inside the fossil for a duration much longer than the average recombination time in the IGM. Quasar fossils at z≲ 10 thus retain their identity for nearly a Hubble time and appear \"gray,\" distinct from both the average IGM (which has a \"Swiss cheese\" ionization topology and a lower mean ionized fraction) and the fully ionized bubbles around active quasars. More distant fossils, at z≳ 10, have a weaker galaxy-generated ionizing background and a higher gas density, so they can attain a Swiss cheese topology similar to the rest of the IGM, but with a smaller contrast between the ionized bubbles and the partially neutral regions separating them. Analogous He III fossils should exist around the epoch of He II/He III reionization at z ∼ 3, although rapid recombination inside the He III fossils is more common. Our model of inhomogeneous recombination also applies to \"double-reionization\" models and shows that a nonmonotonic reionization history is even more unlikely than previously thought.","lang":"eng"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1086/591047"}],"intvolume":"       686","oa":1,"_id":"17787","publication_status":"published","title":"Fossil Ionized bubbles around dead quasars during reionization","oa_version":"Preprint"}]