[{"publist_id":"4519","publisher":"Springer","status":"public","quality_controlled":"1","citation":{"ama":"Lieb É, Seiringer R. Equivalence of two definitions of the effective mass of a polaron. <i>Journal of Statistical Physics</i>. 2014;154(1-2):51-57. doi:<a href=\"https://doi.org/10.1007/s10955-013-0791-z\">10.1007/s10955-013-0791-z</a>","apa":"Lieb, É., &#38; Seiringer, R. (2014). Equivalence of two definitions of the effective mass of a polaron. <i>Journal of Statistical Physics</i>. Springer. <a href=\"https://doi.org/10.1007/s10955-013-0791-z\">https://doi.org/10.1007/s10955-013-0791-z</a>","chicago":"Lieb, Élliott, and Robert Seiringer. “Equivalence of Two Definitions of the Effective Mass of a Polaron.” <i>Journal of Statistical Physics</i>. Springer, 2014. <a href=\"https://doi.org/10.1007/s10955-013-0791-z\">https://doi.org/10.1007/s10955-013-0791-z</a>.","ista":"Lieb É, Seiringer R. 2014. Equivalence of two definitions of the effective mass of a polaron. Journal of Statistical Physics. 154(1–2), 51–57.","mla":"Lieb, Élliott, and Robert Seiringer. “Equivalence of Two Definitions of the Effective Mass of a Polaron.” <i>Journal of Statistical Physics</i>, vol. 154, no. 1–2, Springer, 2014, pp. 51–57, doi:<a href=\"https://doi.org/10.1007/s10955-013-0791-z\">10.1007/s10955-013-0791-z</a>.","short":"É. Lieb, R. Seiringer, Journal of Statistical Physics 154 (2014) 51–57.","ieee":"É. Lieb and R. Seiringer, “Equivalence of two definitions of the effective mass of a polaron,” <i>Journal of Statistical Physics</i>, vol. 154, no. 1–2. Springer, pp. 51–57, 2014."},"volume":154,"day":"01","oa_version":"Submitted Version","type":"journal_article","_id":"2407","intvolume":"       154","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1304.1780"}],"date_updated":"2021-01-12T06:57:18Z","abstract":[{"text":"Two definitions of the effective mass of a particle interacting with a quantum field, such as a polaron, are considered and shown to be equal in models similar to the Fröhlich polaron model. These are: 1. the mass defined by the low momentum energy E(P)≈E(0)+P2/2 M of the translation invariant system constrained to have momentum P and 2. the mass M of a simple particle in an arbitrary slowly varying external potential, V, described by the nonrelativistic Schrödinger equation, whose ground state energy equals that of the combined particle/field system in a bound state in the same V.","lang":"eng"}],"project":[{"_id":"26450934-B435-11E9-9278-68D0E5697425","name":"NSERC Postdoctoral fellowship"}],"month":"01","author":[{"full_name":"Lieb, Élliott","last_name":"Lieb","first_name":"Élliott"},{"full_name":"Seiringer, Robert","id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","last_name":"Seiringer","first_name":"Robert","orcid":"0000-0002-6781-0521"}],"title":"Equivalence of two definitions of the effective mass of a polaron","date_created":"2018-12-11T11:57:29Z","date_published":"2014-01-01T00:00:00Z","page":"51 - 57","issue":"1-2","doi":"10.1007/s10955-013-0791-z","extern":"1","oa":1,"publication_status":"published","year":"2014","user_id":"4435EBFC-F248-11E8-B48F-1D18A9856A87","publication":"Journal of Statistical Physics","language":[{"iso":"eng"}]},{"citation":{"ista":"Browning TD, Matthiesen L, Skorobogatov A. 2014. Rational points on pencils of conics and quadrics with many degenerate fibres. Annals of Mathematics. 180(1), 381–402.","ieee":"T. D. Browning, L. Matthiesen, and A. Skorobogatov, “Rational points on pencils of conics and quadrics with many degenerate fibres,” <i>Annals of Mathematics</i>, vol. 180, no. 1. John Hopkins University Press, pp. 381–402, 2014.","short":"T.D. Browning, L. Matthiesen, A. Skorobogatov, Annals of Mathematics 180 (2014) 381–402.","mla":"Browning, Timothy D., et al. “Rational Points on Pencils of Conics and Quadrics with Many Degenerate Fibres.” <i>Annals of Mathematics</i>, vol. 180, no. 1, John Hopkins University Press, 2014, pp. 381–402, doi:<a href=\"https://doi.org/10.4007/annals.2014.180.1.8\">https://doi.org/10.4007/annals.2014.180.1.8</a>.","apa":"Browning, T. D., Matthiesen, L., &#38; Skorobogatov, A. (2014). Rational points on pencils of conics and quadrics with many degenerate fibres. <i>Annals of Mathematics</i>. John Hopkins University Press. <a href=\"https://doi.org/10.4007/annals.2014.180.1.8\">https://doi.org/10.4007/annals.2014.180.1.8</a>","ama":"Browning TD, Matthiesen L, Skorobogatov A. Rational points on pencils of conics and quadrics with many degenerate fibres. <i>Annals of Mathematics</i>. 2014;180(1):381-402. doi:<a href=\"https://doi.org/10.4007/annals.2014.180.1.8\">https://doi.org/10.4007/annals.2014.180.1.8</a>","chicago":"Browning, Timothy D, Lilian Matthiesen, and Alexei Skorobogatov. “Rational Points on Pencils of Conics and Quadrics with Many Degenerate Fibres.” <i>Annals of Mathematics</i>. John Hopkins University Press, 2014. <a href=\"https://doi.org/10.4007/annals.2014.180.1.8\">https://doi.org/10.4007/annals.2014.180.1.8</a>."},"quality_controlled":0,"volume":180,"publisher":"John Hopkins University Press","publist_id":"7655","status":"public","acknowledgement":"While working on this paper the first two authors were supported by EPSRC grant EP/E053262/1, and the first author was further supported by ERC grant 306457.","intvolume":"       180","day":"01","type":"journal_article","_id":"248","month":"07","author":[{"last_name":"Browning","first_name":"Timothy D","orcid":"0000-0002-8314-0177","full_name":"Timothy Browning","id":"35827D50-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Lilian","last_name":"Matthiesen","full_name":"Matthiesen, Lilian"},{"first_name":"Alexei","last_name":"Skorobogatov","full_name":"Skorobogatov, Alexei N"}],"title":"Rational points on pencils of conics and quadrics with many degenerate fibres","date_created":"2018-12-11T11:45:25Z","main_file_link":[{"url":"https://arxiv.org/abs/1209.0207","open_access":"1"}],"date_updated":"2021-01-12T06:57:44Z","abstract":[{"lang":"eng","text":"For any pencil of conics or higher-dimensional quadrics over ℚ, with all degenerate fibres defined over ℚ, we show that the Brauer–Manin obstruction controls weak approximation. The proof is based on the Hasse principle and weak approximation for some special intersections of quadrics over ℚ, which is a consequence of recent advances in additive combinatorics."}],"publication_status":"published","oa":1,"extern":1,"year":"2014","publication":"Annals of Mathematics","date_published":"2014-07-01T00:00:00Z","page":"381 - 402","doi":"https://doi.org/10.4007/annals.2014.180.1.8","issue":"1"},{"date_created":"2018-12-11T11:45:26Z","title":"Cubic hypersurfaces and a version of the circle method for number fields","author":[{"id":"35827D50-F248-11E8-B48F-1D18A9856A87","full_name":"Timothy Browning","first_name":"Timothy D","last_name":"Browning","orcid":"0000-0002-8314-0177"},{"first_name":"Pankaj","last_name":"Vishe","full_name":"Vishe, Pankaj"}],"month":"07","abstract":[{"text":"A version of the Hardy-Littlewood circle method is developed for number fields K/ℚ and is used to show that nonsingular projective cubic hypersurfaces over K always have a K-rational point when they have dimension at least 8. ","lang":"eng"}],"date_updated":"2021-01-12T06:57:47Z","publication":"Duke Mathematical Journal","year":"2014","extern":1,"publication_status":"published","doi":"10.1215/00127094-2738530","issue":"10","page":"1825 - 1883","date_published":"2014-07-01T00:00:00Z","volume":163,"citation":{"ista":"Browning TD, Vishe P. 2014. Cubic hypersurfaces and a version of the circle method for number fields. Duke Mathematical Journal. 163(10), 1825–1883.","ieee":"T. D. Browning and P. Vishe, “Cubic hypersurfaces and a version of the circle method for number fields,” <i>Duke Mathematical Journal</i>, vol. 163, no. 10. Duke University Press, pp. 1825–1883, 2014.","short":"T.D. Browning, P. Vishe, Duke Mathematical Journal 163 (2014) 1825–1883.","mla":"Browning, Timothy D., and Pankaj Vishe. “Cubic Hypersurfaces and a Version of the Circle Method for Number Fields.” <i>Duke Mathematical Journal</i>, vol. 163, no. 10, Duke University Press, 2014, pp. 1825–83, doi:<a href=\"https://doi.org/10.1215/00127094-2738530\">10.1215/00127094-2738530</a>.","apa":"Browning, T. D., &#38; Vishe, P. (2014). Cubic hypersurfaces and a version of the circle method for number fields. <i>Duke Mathematical Journal</i>. Duke University Press. <a href=\"https://doi.org/10.1215/00127094-2738530\">https://doi.org/10.1215/00127094-2738530</a>","ama":"Browning TD, Vishe P. Cubic hypersurfaces and a version of the circle method for number fields. <i>Duke Mathematical Journal</i>. 2014;163(10):1825-1883. doi:<a href=\"https://doi.org/10.1215/00127094-2738530\">10.1215/00127094-2738530</a>","chicago":"Browning, Timothy D, and Pankaj Vishe. “Cubic Hypersurfaces and a Version of the Circle Method for Number Fields.” <i>Duke Mathematical Journal</i>. Duke University Press, 2014. <a href=\"https://doi.org/10.1215/00127094-2738530\">https://doi.org/10.1215/00127094-2738530</a>."},"quality_controlled":0,"status":"public","publist_id":"7653","publisher":"Duke University Press","intvolume":"       163","_id":"249","type":"journal_article","day":"01"},{"volume":163,"quality_controlled":0,"citation":{"ista":"Browning TD, Jones M. 2014. Counting rational points on del Pezzo surfaces with a conic bundle structure. Acta Arithmetica. 163(3), 271–298.","mla":"Browning, Timothy D., and Michael Jones. “Counting Rational Points on Del Pezzo Surfaces with a Conic Bundle Structure.” <i>Acta Arithmetica</i>, vol. 163, no. 3, Instytut Matematyczny, 2014, pp. 271–98, doi:<a href=\"https://doi.org/10.4064/aa163-3-6\">10.4064/aa163-3-6</a>.","short":"T.D. Browning, M. Jones, Acta Arithmetica 163 (2014) 271–298.","ieee":"T. D. Browning and M. Jones, “Counting rational points on del Pezzo surfaces with a conic bundle structure,” <i>Acta Arithmetica</i>, vol. 163, no. 3. Instytut Matematyczny, pp. 271–298, 2014.","apa":"Browning, T. D., &#38; Jones, M. (2014). Counting rational points on del Pezzo surfaces with a conic bundle structure. <i>Acta Arithmetica</i>. Instytut Matematyczny. <a href=\"https://doi.org/10.4064/aa163-3-6\">https://doi.org/10.4064/aa163-3-6</a>","ama":"Browning TD, Jones M. Counting rational points on del Pezzo surfaces with a conic bundle structure. <i>Acta Arithmetica</i>. 2014;163(3):271-298. doi:<a href=\"https://doi.org/10.4064/aa163-3-6\">10.4064/aa163-3-6</a>","chicago":"Browning, Timothy D, and Michael Jones. “Counting Rational Points on Del Pezzo Surfaces with a Conic Bundle Structure.” <i>Acta Arithmetica</i>. Instytut Matematyczny, 2014. <a href=\"https://doi.org/10.4064/aa163-3-6\">https://doi.org/10.4064/aa163-3-6</a>."},"status":"public","publisher":"Instytut Matematyczny","publist_id":"7650","intvolume":"       163","day":"01","_id":"252","type":"journal_article","month":"01","date_created":"2018-12-11T11:45:26Z","title":"Counting rational points on del Pezzo surfaces with a conic bundle structure","author":[{"full_name":"Timothy Browning","id":"35827D50-F248-11E8-B48F-1D18A9856A87","last_name":"Browning","first_name":"Timothy D","orcid":"0000-0002-8314-0177"},{"full_name":"Jones, Michael S","first_name":"Michael","last_name":"Jones"}],"date_updated":"2021-01-12T06:57:59Z","abstract":[{"text":"For any number field k, upper bounds are established for the number of k-rational points of bounded height on non-singular del Pezzo surfaces defined over k, which are equipped with suitable conic bundle structures over k.","lang":"eng"}],"year":"2014","extern":1,"publication_status":"published","publication":"Acta Arithmetica","date_published":"2014-01-01T00:00:00Z","doi":"10.4064/aa163-3-6","issue":"3","page":"271 - 298"},{"volume":2015,"status":"public","acknowledgement":"While working on this paper, the author was supported by ERC grant 306457 and a Philip Leverhulme Prize.","type":"journal_article","month":"01","year":"2014","extern":"1","language":[{"iso":"eng"}],"doi":"10.1093/imrn/rnt350","issue":"7","related_material":{"record":[{"status":"public","id":"19051","relation":"later_version"}],"link":[{"relation":"erratum","url":"https://doi.org/10.1093/imrn/rnae066"}]},"page":"1987 - 2019","quality_controlled":"1","citation":{"chicago":"Browning, Timothy D. “The Polynomial Sieve and Equal Sums of like Polynomials.” <i>International Mathematics Research Notices</i>. Oxford University Press, 2014. <a href=\"https://doi.org/10.1093/imrn/rnt350\">https://doi.org/10.1093/imrn/rnt350</a>.","apa":"Browning, T. D. (2014). The polynomial sieve and equal sums of like polynomials. <i>International Mathematics Research Notices</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/imrn/rnt350\">https://doi.org/10.1093/imrn/rnt350</a>","ama":"Browning TD. The polynomial sieve and equal sums of like polynomials. <i>International Mathematics Research Notices</i>. 2014;2015(7):1987-2019. doi:<a href=\"https://doi.org/10.1093/imrn/rnt350\">10.1093/imrn/rnt350</a>","ieee":"T. D. Browning, “The polynomial sieve and equal sums of like polynomials,” <i>International Mathematics Research Notices</i>, vol. 2015, no. 7. Oxford University Press, pp. 1987–2019, 2014.","mla":"Browning, Timothy D. “The Polynomial Sieve and Equal Sums of like Polynomials.” <i>International Mathematics Research Notices</i>, vol. 2015, no. 7, Oxford University Press, 2014, pp. 1987–2019, doi:<a href=\"https://doi.org/10.1093/imrn/rnt350\">10.1093/imrn/rnt350</a>.","short":"T.D. Browning, International Mathematics Research Notices 2015 (2014) 1987–2019.","ista":"Browning TD. 2014. The polynomial sieve and equal sums of like polynomials. International Mathematics Research Notices. 2015(7), 1987–2019."},"publisher":"Oxford University Press","publist_id":"7648","scopus_import":"1","intvolume":"      2015","day":"31","_id":"254","oa_version":"None","article_processing_charge":"No","date_created":"2018-12-11T11:45:27Z","title":"The polynomial sieve and equal sums of like polynomials","author":[{"orcid":"0000-0002-8314-0177","last_name":"Browning","first_name":"Timothy D","full_name":"Browning, Timothy D","id":"35827D50-F248-11E8-B48F-1D18A9856A87"}],"date_updated":"2025-09-09T12:16:44Z","abstract":[{"text":"A new &quot;polynomial sieve&quot; is presented and used to show that almost all integers have at most one representation as a sum of two values of a given polynomial of degree at least 3.","lang":"eng"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","publication":"International Mathematics Research Notices","date_published":"2014-01-31T00:00:00Z"},{"intvolume":"        14","day":"05","article_processing_charge":"No","oa_version":"None","_id":"255","type":"journal_article","citation":{"chicago":"Browning, Timothy D, Rainer Dietmann, and Roger Heath Brown. “Rational Points on Intersections of Cubic and Quadric Hypersurfaces.” <i>Journal of the Institute of Mathematics of Jussieu</i>. Cambridge University Press, 2014. <a href=\"https://doi.org/10.1017/S1474748014000127\">https://doi.org/10.1017/S1474748014000127</a>.","apa":"Browning, T. D., Dietmann, R., &#38; Heath Brown, R. (2014). Rational points on intersections of cubic and quadric hypersurfaces. <i>Journal of the Institute of Mathematics of Jussieu</i>. Cambridge University Press. <a href=\"https://doi.org/10.1017/S1474748014000127\">https://doi.org/10.1017/S1474748014000127</a>","ama":"Browning TD, Dietmann R, Heath Brown R. Rational points on intersections of cubic and quadric hypersurfaces. <i>Journal of the Institute of Mathematics of Jussieu</i>. 2014;14(4):703-749. doi:<a href=\"https://doi.org/10.1017/S1474748014000127\">10.1017/S1474748014000127</a>","short":"T.D. Browning, R. Dietmann, R. Heath Brown, Journal of the Institute of Mathematics of Jussieu 14 (2014) 703–749.","mla":"Browning, Timothy D., et al. “Rational Points on Intersections of Cubic and Quadric Hypersurfaces.” <i>Journal of the Institute of Mathematics of Jussieu</i>, vol. 14, no. 4, Cambridge University Press, 2014, pp. 703–49, doi:<a href=\"https://doi.org/10.1017/S1474748014000127\">10.1017/S1474748014000127</a>.","ieee":"T. D. Browning, R. Dietmann, and R. Heath Brown, “Rational points on intersections of cubic and quadric hypersurfaces,” <i>Journal of the Institute of Mathematics of Jussieu</i>, vol. 14, no. 4. Cambridge University Press, pp. 703–749, 2014.","ista":"Browning TD, Dietmann R, Heath Brown R. 2014. Rational points on intersections of cubic and quadric hypersurfaces. Journal of the Institute of Mathematics of Jussieu. 14(4), 703–749."},"volume":14,"publisher":"Cambridge University Press","publist_id":"7647","status":"public","publication_status":"published","extern":"1","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","year":"2014","publication":"Journal of the Institute of Mathematics of Jussieu","language":[{"iso":"eng"}],"date_published":"2014-01-05T00:00:00Z","page":"703 - 749","related_material":{"link":[{"url":"https://doi.org/10.1017/S1474748014000279","relation":"erratum"}]},"doi":"10.1017/S1474748014000127","issue":"4","month":"01","author":[{"orcid":"0000-0002-8314-0177","first_name":"Timothy D","last_name":"Browning","id":"35827D50-F248-11E8-B48F-1D18A9856A87","full_name":"Browning, Timothy D"},{"first_name":"Rainer","last_name":"Dietmann","full_name":"Dietmann, Rainer"},{"last_name":"Heath Brown","first_name":"Roger","full_name":"Heath Brown, Roger"}],"title":"Rational points on intersections of cubic and quadric hypersurfaces","date_created":"2018-12-11T11:45:27Z","date_updated":"2021-11-16T08:07:06Z","abstract":[{"lang":"eng","text":"We investigate the Hasse principle for complete intersections cut out by a quadric hypersurface and a cubic hypersurface defined over the rational numbers."}]},{"intvolume":"        33","department":[{"_id":"ChWo"}],"_id":"1629","oa_version":"Submitted Version","article_processing_charge":"No","day":"01","ddc":["000"],"citation":{"chicago":"Guerrero, Paul, Stefan Jeschke, Michael Wimmer, and Peter Wonka. “Edit Propagation Using Geometric Relationship Functions.” <i>ACM Transactions on Graphics</i>. ACM, 2014. <a href=\"https://doi.org/10.1145/2591010\">https://doi.org/10.1145/2591010</a>.","apa":"Guerrero, P., Jeschke, S., Wimmer, M., &#38; Wonka, P. (2014). Edit propagation using geometric relationship functions. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/2591010\">https://doi.org/10.1145/2591010</a>","ama":"Guerrero P, Jeschke S, Wimmer M, Wonka P. Edit propagation using geometric relationship functions. <i>ACM Transactions on Graphics</i>. 2014;33(2). doi:<a href=\"https://doi.org/10.1145/2591010\">10.1145/2591010</a>","short":"P. Guerrero, S. Jeschke, M. Wimmer, P. Wonka, ACM Transactions on Graphics 33 (2014).","mla":"Guerrero, Paul, et al. “Edit Propagation Using Geometric Relationship Functions.” <i>ACM Transactions on Graphics</i>, vol. 33, no. 2, 15, ACM, 2014, doi:<a href=\"https://doi.org/10.1145/2591010\">10.1145/2591010</a>.","ieee":"P. Guerrero, S. Jeschke, M. Wimmer, and P. Wonka, “Edit propagation using geometric relationship functions,” <i>ACM Transactions on Graphics</i>, vol. 33, no. 2. ACM, 2014.","ista":"Guerrero P, Jeschke S, Wimmer M, Wonka P. 2014. Edit propagation using geometric relationship functions. ACM Transactions on Graphics. 33(2), 15."},"quality_controlled":"1","publist_id":"5526","publisher":"ACM","publication":"ACM Transactions on Graphics","file_date_updated":"2020-07-14T12:45:07Z","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication_status":"published","article_number":"15","date_published":"2014-03-01T00:00:00Z","external_id":{"isi":["000335009900003"]},"date_created":"2018-12-11T11:53:08Z","author":[{"first_name":"Paul","last_name":"Guerrero","full_name":"Guerrero, Paul"},{"id":"44D6411A-F248-11E8-B48F-1D18A9856A87","full_name":"Jeschke, Stefan","first_name":"Stefan","last_name":"Jeschke"},{"full_name":"Wimmer, Michael","first_name":"Michael","last_name":"Wimmer"},{"full_name":"Wonka, Peter","last_name":"Wonka","first_name":"Peter"}],"title":"Edit propagation using geometric relationship functions","abstract":[{"text":"We propose a method for propagating edit operations in 2D vector graphics, based on geometric relationship functions. These functions quantify the geometric relationship of a point to a polygon, such as the distance to the boundary or the direction to the closest corner vertex. The level sets of the relationship functions describe points with the same relationship to a polygon. For a given query point, we first determine a set of relationships to local features, construct all level sets for these relationships, and accumulate them. The maxima of the resulting distribution are points with similar geometric relationships. We show extensions to handle mirror symmetries, and discuss the use of relationship functions as local coordinate systems. Our method can be applied, for example, to interactive floorplan editing, and it is especially useful for large layouts, where individual edits would be cumbersome. We demonstrate populating 2D layouts with tens to hundreds of objects by propagating relatively few edit operations.","lang":"eng"}],"date_updated":"2025-09-29T13:16:25Z","type":"journal_article","volume":33,"pubrep_id":"577","status":"public","language":[{"iso":"eng"}],"file":[{"relation":"main_file","date_created":"2018-12-12T10:11:22Z","file_name":"IST-2016-577-v1+1_2014.TOG.Paul.EditingPropagation.final.pdf","date_updated":"2020-07-14T12:45:07Z","checksum":"7f91e588a4e888610313b98271e6418e","file_size":9832561,"content_type":"application/pdf","file_id":"4876","creator":"system","access_level":"open_access"}],"year":"2014","oa":1,"doi":"10.1145/2591010","issue":"2","has_accepted_license":"1","month":"03","isi":1},{"type":"conference","ec_funded":1,"status":"public","volume":8642,"conference":{"location":"Amalfi, Italy","end_date":"2014-09-05","name":"SCN: Security and Cryptography for Networks","start_date":"2014-09-03"},"page":"95 - 114","doi":"10.1007/978-3-319-10879-7_7","oa":1,"year":"2014","language":[{"iso":"eng"}],"editor":[{"first_name":"Michel","last_name":"Abdalla","full_name":"Abdalla, Michel"},{"first_name":"Roberto","last_name":"De Prisco","full_name":"De Prisco, Roberto"}],"month":"01","day":"01","oa_version":"Submitted Version","_id":"1643","scopus_import":1,"alternative_title":["LNCS"],"department":[{"_id":"KrPi"}],"intvolume":"      8642","publist_id":"5509","publisher":"Springer","citation":{"ista":"Fuchsbauer G. 2014. Constrained Verifiable Random Functions . SCN 2014. SCN: Security and Cryptography for Networks, LNCS, vol. 8642, 95–114.","mla":"Fuchsbauer, Georg. “Constrained Verifiable Random Functions .” <i>SCN 2014</i>, edited by Michel Abdalla and Roberto De Prisco, vol. 8642, Springer, 2014, pp. 95–114, doi:<a href=\"https://doi.org/10.1007/978-3-319-10879-7_7\">10.1007/978-3-319-10879-7_7</a>.","short":"G. Fuchsbauer, in:, M. Abdalla, R. De Prisco (Eds.), SCN 2014, Springer, 2014, pp. 95–114.","ieee":"G. Fuchsbauer, “Constrained Verifiable Random Functions ,” in <i>SCN 2014</i>, Amalfi, Italy, 2014, vol. 8642, pp. 95–114.","ama":"Fuchsbauer G. Constrained Verifiable Random Functions . In: Abdalla M, De Prisco R, eds. <i>SCN 2014</i>. Vol 8642. Springer; 2014:95-114. doi:<a href=\"https://doi.org/10.1007/978-3-319-10879-7_7\">10.1007/978-3-319-10879-7_7</a>","apa":"Fuchsbauer, G. (2014). Constrained Verifiable Random Functions . In M. Abdalla &#38; R. De Prisco (Eds.), <i>SCN 2014</i> (Vol. 8642, pp. 95–114). Amalfi, Italy: Springer. <a href=\"https://doi.org/10.1007/978-3-319-10879-7_7\">https://doi.org/10.1007/978-3-319-10879-7_7</a>","chicago":"Fuchsbauer, Georg. “Constrained Verifiable Random Functions .” In <i>SCN 2014</i>, edited by Michel Abdalla and Roberto De Prisco, 8642:95–114. Springer, 2014. <a href=\"https://doi.org/10.1007/978-3-319-10879-7_7\">https://doi.org/10.1007/978-3-319-10879-7_7</a>."},"date_published":"2014-01-01T00:00:00Z","corr_author":"1","publication_status":"published","user_id":"4435EBFC-F248-11E8-B48F-1D18A9856A87","publication":"SCN 2014","main_file_link":[{"url":"http://eprint.iacr.org/2014/537","open_access":"1"}],"date_updated":"2024-10-09T20:55:56Z","abstract":[{"text":"We extend the notion of verifiable random functions (VRF) to constrained VRFs, which generalize the concept of constrained pseudorandom functions, put forward by Boneh and Waters (Asiacrypt’13), and independently by Kiayias et al. (CCS’13) and Boyle et al. (PKC’14), who call them delegatable PRFs and functional PRFs, respectively. In a standard VRF the secret key sk allows one to evaluate a pseudorandom function at any point of its domain; in addition, it enables computation of a non-interactive proof that the function value was computed correctly. In a constrained VRF from the key sk one can derive constrained keys skS for subsets S of the domain, which allow computation of function values and proofs only at points in S. After formally defining constrained VRFs, we derive instantiations from the multilinear-maps-based constrained PRFs by Boneh and Waters, yielding a VRF with constrained keys for any set that can be decided by a polynomial-size circuit. Our VRFs have the same function values as the Boneh-Waters PRFs and are proved secure under the same hardness assumption, showing that verifiability comes at no cost. Constrained (functional) VRFs were stated as an open problem by Boyle et al.","lang":"eng"}],"project":[{"call_identifier":"FP7","name":"Provable Security for Physical Cryptography","grant_number":"259668","_id":"258C570E-B435-11E9-9278-68D0E5697425"}],"title":"Constrained Verifiable Random Functions ","author":[{"id":"46B4C3EE-F248-11E8-B48F-1D18A9856A87","full_name":"Fuchsbauer, Georg","last_name":"Fuchsbauer","first_name":"Georg"}],"date_created":"2018-12-11T11:53:13Z"},{"arxiv":1,"month":"12","page":"31 - 38","conference":{"end_date":"2014-07-17","location":"Vienna, Austria","name":"HCVS: Horn Clauses for Verification and Synthesis","start_date":"2014-07-17"},"doi":"10.4204/EPTCS.169.5","language":[{"iso":"eng"}],"oa":1,"year":"2014","status":"public","volume":169,"type":"conference","abstract":[{"text":"In this paper we present INTERHORN, a solver for recursion-free Horn clauses. The main application domain of INTERHORN lies in solving interpolation problems arising in software verification. We show how a range of interpolation problems, including path, transition, nested, state/transition and well-founded interpolation can be handled directly by INTERHORN. By detailing these interpolation problems and their Horn clause representations, we hope to encourage the emergence of a common back-end interpolation interface useful for diverse verification tools.","lang":"eng"}],"main_file_link":[{"url":"http://arxiv.org/abs/1303.7378","open_access":"1"}],"date_updated":"2025-06-11T08:03:28Z","author":[{"last_name":"Gupta","first_name":"Ashutosh","id":"335E5684-F248-11E8-B48F-1D18A9856A87","full_name":"Gupta, Ashutosh"},{"last_name":"Popeea","first_name":"Corneliu","full_name":"Popeea, Corneliu"},{"first_name":"Andrey","last_name":"Rybalchenko","full_name":"Rybalchenko, Andrey"}],"title":"Generalised interpolation by solving recursion free-horn clauses","external_id":{"arxiv":["1303.7378"]},"date_created":"2018-12-11T11:53:33Z","corr_author":"1","date_published":"2014-12-02T00:00:00Z","publication":"Electronic Proceedings in Theoretical Computer Science, EPTCS","publication_status":"published","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publist_id":"5435","publisher":"Open Publishing Association","citation":{"ista":"Gupta A, Popeea C, Rybalchenko A. 2014. Generalised interpolation by solving recursion free-horn clauses. Electronic Proceedings in Theoretical Computer Science, EPTCS. HCVS: Horn Clauses for Verification and Synthesis, EPTCS, vol. 169, 31–38.","ieee":"A. Gupta, C. Popeea, and A. Rybalchenko, “Generalised interpolation by solving recursion free-horn clauses,” in <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i>, Vienna, Austria, 2014, vol. 169, pp. 31–38.","short":"A. Gupta, C. Popeea, A. Rybalchenko, in:, Electronic Proceedings in Theoretical Computer Science, EPTCS, Open Publishing Association, 2014, pp. 31–38.","mla":"Gupta, Ashutosh, et al. “Generalised Interpolation by Solving Recursion Free-Horn Clauses.” <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i>, vol. 169, Open Publishing Association, 2014, pp. 31–38, doi:<a href=\"https://doi.org/10.4204/EPTCS.169.5\">10.4204/EPTCS.169.5</a>.","apa":"Gupta, A., Popeea, C., &#38; Rybalchenko, A. (2014). Generalised interpolation by solving recursion free-horn clauses. In <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i> (Vol. 169, pp. 31–38). Vienna, Austria: Open Publishing Association. <a href=\"https://doi.org/10.4204/EPTCS.169.5\">https://doi.org/10.4204/EPTCS.169.5</a>","ama":"Gupta A, Popeea C, Rybalchenko A. Generalised interpolation by solving recursion free-horn clauses. In: <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i>. Vol 169. Open Publishing Association; 2014:31-38. doi:<a href=\"https://doi.org/10.4204/EPTCS.169.5\">10.4204/EPTCS.169.5</a>","chicago":"Gupta, Ashutosh, Corneliu Popeea, and Andrey Rybalchenko. “Generalised Interpolation by Solving Recursion Free-Horn Clauses.” In <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i>, 169:31–38. Open Publishing Association, 2014. <a href=\"https://doi.org/10.4204/EPTCS.169.5\">https://doi.org/10.4204/EPTCS.169.5</a>."},"quality_controlled":"1","article_processing_charge":"No","oa_version":"Submitted Version","_id":"1702","day":"02","alternative_title":["EPTCS"],"department":[{"_id":"ToHe"}],"intvolume":"       169","scopus_import":"1"},{"status":"public","volume":27,"type":"conference","month":"01","issue":"January","page":"2024 - 2032","conference":{"location":"Montreal, Canada","end_date":"2014-12-13","name":"NIPS: Neural Information Processing Systems","start_date":"2014-12-08"},"year":"2014","oa":1,"language":[{"iso":"eng"}],"publist_id":"5427","publisher":"Neural Information Processing Systems Foundation","citation":{"ama":"Savin C, Denève S. Spatio-temporal representations of uncertainty in spiking neural networks. In: Vol 27. Neural Information Processing Systems Foundation; 2014:2024-2032.","apa":"Savin, C., &#38; Denève, S. (2014). Spatio-temporal representations of uncertainty in spiking neural networks (Vol. 27, pp. 2024–2032). Presented at the NIPS: Neural Information Processing Systems, Montreal, Canada: Neural Information Processing Systems Foundation.","chicago":"Savin, Cristina, and Sophie Denève. “Spatio-Temporal Representations of Uncertainty in Spiking Neural Networks,” 27:2024–32. Neural Information Processing Systems Foundation, 2014.","ista":"Savin C, Denève S. 2014. Spatio-temporal representations of uncertainty in spiking neural networks. NIPS: Neural Information Processing Systems vol. 27, 2024–2032.","ieee":"C. Savin and S. Denève, “Spatio-temporal representations of uncertainty in spiking neural networks,” presented at the NIPS: Neural Information Processing Systems, Montreal, Canada, 2014, vol. 27, no. January, pp. 2024–2032.","mla":"Savin, Cristina, and Sophie Denève. <i>Spatio-Temporal Representations of Uncertainty in Spiking Neural Networks</i>. Vol. 27, no. January, Neural Information Processing Systems Foundation, 2014, pp. 2024–32.","short":"C. Savin, S. Denève, in:, Neural Information Processing Systems Foundation, 2014, pp. 2024–2032."},"quality_controlled":"1","day":"01","_id":"1708","article_processing_charge":"No","oa_version":"None","scopus_import":"1","intvolume":"        27","department":[{"_id":"GaTk"}],"date_updated":"2025-06-03T11:45:08Z","main_file_link":[{"url":"http://papers.nips.cc/paper/5343-spatio-temporal-representations-of-uncertainty-in-spiking-neural-networks.pdf","open_access":"1"}],"abstract":[{"text":"It has been long argued that, because of inherent ambiguity and noise, the brain needs to represent uncertainty in the form of probability distributions. The neural encoding of such distributions remains however highly controversial. Here we present a novel circuit model for representing multidimensional real-valued distributions using a spike based spatio-temporal code. Our model combines the computational advantages of the currently competing models for probabilistic codes and exhibits realistic neural responses along a variety of classic measures. Furthermore, the model highlights the challenges associated with interpreting neural activity in relation to behavioral uncertainty and points to alternative population-level approaches for the experimental validation of distributed representations.","lang":"eng"}],"date_created":"2018-12-11T11:53:35Z","author":[{"full_name":"Savin, Cristina","id":"3933349E-F248-11E8-B48F-1D18A9856A87","first_name":"Cristina","last_name":"Savin"},{"full_name":"Denève, Sophie","last_name":"Denève","first_name":"Sophie"}],"title":"Spatio-temporal representations of uncertainty in spiking neural networks","date_published":"2014-01-01T00:00:00Z","corr_author":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published"},{"type":"journal_article","ec_funded":1,"status":"public","volume":560,"related_material":{"record":[{"id":"2916","status":"public","relation":"earlier_version"}]},"page":"348 - 363","doi":"10.1016/j.tcs.2014.08.019","issue":"3","oa":1,"year":"2014","language":[{"iso":"eng"}],"arxiv":1,"isi":1,"month":"12","day":"04","oa_version":"Submitted Version","article_processing_charge":"No","_id":"1733","scopus_import":"1","department":[{"_id":"ToHe"},{"_id":"KrCh"}],"intvolume":"       560","publist_id":"5392","publisher":"Elsevier","quality_controlled":"1","citation":{"ista":"Cerny P, Chmelik M, Henzinger TA, Radhakrishna A. 2014. Interface simulation distances. Theoretical Computer Science. 560(3), 348–363.","short":"P. Cerny, M. Chmelik, T.A. Henzinger, A. Radhakrishna, Theoretical Computer Science 560 (2014) 348–363.","mla":"Cerny, Pavol, et al. “Interface Simulation Distances.” <i>Theoretical Computer Science</i>, vol. 560, no. 3, Elsevier, 2014, pp. 348–63, doi:<a href=\"https://doi.org/10.1016/j.tcs.2014.08.019\">10.1016/j.tcs.2014.08.019</a>.","ieee":"P. Cerny, M. Chmelik, T. A. Henzinger, and A. Radhakrishna, “Interface simulation distances,” <i>Theoretical Computer Science</i>, vol. 560, no. 3. Elsevier, pp. 348–363, 2014.","apa":"Cerny, P., Chmelik, M., Henzinger, T. A., &#38; Radhakrishna, A. (2014). Interface simulation distances. <i>Theoretical Computer Science</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.tcs.2014.08.019\">https://doi.org/10.1016/j.tcs.2014.08.019</a>","ama":"Cerny P, Chmelik M, Henzinger TA, Radhakrishna A. Interface simulation distances. <i>Theoretical Computer Science</i>. 2014;560(3):348-363. doi:<a href=\"https://doi.org/10.1016/j.tcs.2014.08.019\">10.1016/j.tcs.2014.08.019</a>","chicago":"Cerny, Pavol, Martin Chmelik, Thomas A Henzinger, and Arjun Radhakrishna. “Interface Simulation Distances.” <i>Theoretical Computer Science</i>. Elsevier, 2014. <a href=\"https://doi.org/10.1016/j.tcs.2014.08.019\">https://doi.org/10.1016/j.tcs.2014.08.019</a>."},"date_published":"2014-12-04T00:00:00Z","corr_author":"1","publication_status":"published","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication":"Theoretical Computer Science","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1210.2450"}],"date_updated":"2025-09-29T13:14:25Z","abstract":[{"text":"The classical (boolean) notion of refinement for behavioral interfaces of system components is the alternating refinement preorder. In this paper, we define a distance for interfaces, called interface simulation distance. It makes the alternating refinement preorder quantitative by, intuitively, tolerating errors (while counting them) in the alternating simulation game. We show that the interface simulation distance satisfies the triangle inequality, that the distance between two interfaces does not increase under parallel composition with a third interface, that the distance between two interfaces can be bounded from above and below by distances between abstractions of the two interfaces, and how to synthesize an interface from incompatible requirements. We illustrate the framework, and the properties of the distances under composition of interfaces, with two case studies.","lang":"eng"}],"project":[{"grant_number":"267989","name":"Quantitative Reactive Modeling","call_identifier":"FP7","_id":"25EE3708-B435-11E9-9278-68D0E5697425"},{"grant_number":"S11402-N23","name":"Moderne Concurrency Paradigms","call_identifier":"FWF","_id":"25F5A88A-B435-11E9-9278-68D0E5697425"},{"_id":"25863FF4-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"S11407","name":"Game Theory"},{"_id":"2584A770-B435-11E9-9278-68D0E5697425","grant_number":"P 23499-N23","name":"Modern Graph Algorithmic Techniques in Formal Verification","call_identifier":"FWF"},{"call_identifier":"FP7","grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","_id":"2581B60A-B435-11E9-9278-68D0E5697425"},{"_id":"2587B514-B435-11E9-9278-68D0E5697425","name":"Microsoft Research Faculty Fellowship"}],"title":"Interface simulation distances","author":[{"first_name":"Pavol","last_name":"Cerny","full_name":"Cerny, Pavol"},{"last_name":"Chmelik","first_name":"Martin","id":"3624234E-F248-11E8-B48F-1D18A9856A87","full_name":"Chmelik, Martin"},{"orcid":"0000−0002−2985−7724","last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Arjun","last_name":"Radhakrishna","id":"3B51CAC4-F248-11E8-B48F-1D18A9856A87","full_name":"Radhakrishna, Arjun"}],"date_created":"2018-12-11T11:53:43Z","external_id":{"arxiv":["1210.2450"],"isi":["000347601300009"]}},{"day":"01","_id":"1761","type":"journal_article","intvolume":"         3","acknowledgement":"This work was supported by the Agence Nationale de la Recherche and by the EU through the ERC Starting Grant HybridNano","status":"public","publist_id":"5363","publisher":"American Physical Society","volume":3,"quality_controlled":0,"citation":{"ieee":"M. Mongillo <i>et al.</i>, “PtSi clustering in silicon probed by transport spectroscopy,” <i>Physical Review X</i>, vol. 3, no. 4. American Physical Society, 2014.","short":"M. Mongillo, P. Spathis, G. Katsaros, S. De Franceschi, P. Gentile, R. Rurali, X. Cartoixà, Physical Review X 3 (2014).","mla":"Mongillo, Massimo, et al. “PtSi Clustering in Silicon Probed by Transport Spectroscopy.” <i>Physical Review X</i>, vol. 3, no. 4, American Physical Society, 2014, doi:<a href=\"https://doi.org/10.1103/PhysRevX.3.041025\">10.1103/PhysRevX.3.041025</a>.","ista":"Mongillo M, Spathis P, Katsaros G, De Franceschi S, Gentile P, Rurali R, Cartoixà X. 2014. PtSi clustering in silicon probed by transport spectroscopy. Physical Review X. 3(4).","chicago":"Mongillo, Massimo, Panayotis Spathis, Georgios Katsaros, Silvano De Franceschi, Pascal Gentile, Riccardo Rurali, and Xavier Cartoixà. “PtSi Clustering in Silicon Probed by Transport Spectroscopy.” <i>Physical Review X</i>. American Physical Society, 2014. <a href=\"https://doi.org/10.1103/PhysRevX.3.041025\">https://doi.org/10.1103/PhysRevX.3.041025</a>.","apa":"Mongillo, M., Spathis, P., Katsaros, G., De Franceschi, S., Gentile, P., Rurali, R., &#38; Cartoixà, X. (2014). PtSi clustering in silicon probed by transport spectroscopy. <i>Physical Review X</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevX.3.041025\">https://doi.org/10.1103/PhysRevX.3.041025</a>","ama":"Mongillo M, Spathis P, Katsaros G, et al. PtSi clustering in silicon probed by transport spectroscopy. <i>Physical Review X</i>. 2014;3(4). doi:<a href=\"https://doi.org/10.1103/PhysRevX.3.041025\">10.1103/PhysRevX.3.041025</a>"},"date_published":"2014-01-01T00:00:00Z","doi":"10.1103/PhysRevX.3.041025","issue":"4","year":"2014","extern":1,"publication_status":"published","oa":1,"publication":"Physical Review X","date_updated":"2021-01-12T06:53:02Z","main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1407.5413"}],"abstract":[{"lang":"eng","text":"Metal silicides formed by means of thermal annealing processes are employed as contact materials in microelectronics. Control of the structure of silicide/silicon interfaces becomes a critical issue when the characteristic size of the device is reduced below a few tens of nanometers. Here, we report on silicide clustering occurring within the channel of PtSi/Si/PtSi Schottky-barrier transistors. This phenomenon is investigated through atomistic simulations and low-temperature resonant-tunneling spectroscopy. Our results provide evidence for the segregation of a PtSi cluster with a diameter of a few nanometers from the silicide contact. The cluster acts as a metallic quantum dot giving rise to distinct signatures of quantum transport through its discrete energy states."}],"month":"01","date_created":"2018-12-11T11:53:52Z","title":"PtSi clustering in silicon probed by transport spectroscopy","author":[{"full_name":"Mongillo, Massimo","last_name":"Mongillo","first_name":"Massimo"},{"first_name":"Panayotis","last_name":"Spathis","full_name":"Spathis, Panayotis N"},{"id":"38DB5788-F248-11E8-B48F-1D18A9856A87","full_name":"Georgios Katsaros","first_name":"Georgios","last_name":"Katsaros"},{"first_name":"Silvano","last_name":"De Franceschi","full_name":"De Franceschi, Silvano"},{"full_name":"Gentile, Pascal","first_name":"Pascal","last_name":"Gentile"},{"last_name":"Rurali","first_name":"Riccardo","full_name":"Rurali, Riccardo"},{"last_name":"Cartoixà","first_name":"Xavier","full_name":"Cartoixà, Xavier"}]},{"month":"09","doi":"10.1093/mnras/stu1710","issue":"1","page":"107-114","year":"2014","oa":1,"extern":"1","language":[{"iso":"eng"}],"publication_identifier":{"issn":["0035-8711","1365-2966"]},"status":"public","volume":445,"type":"journal_article","date_updated":"2024-09-24T07:43:44Z","main_file_link":[{"url":"https://doi.org/10.1093/mnras/stu1710","open_access":"1"}],"abstract":[{"text":"The first generation of stars produces a background of Lyman–Werner (LW) radiation which can photodissociate molecular hydrogen, increasing the mass of dark matter haloes required to host star formation. Previous studies have determined the critical mass required for efficient molecular cooling with a constant LW background. However, the true background is expected to increase rapidly at early times. Neglecting this evolution could underestimate star formation in small haloes that may have started to cool in the past when the LW intensity was much lower. Background evolution is a large source of uncertainty in pre-reionization predictions of the cosmological 21cm signal, which can be observed with future radio telescopes. To address this, we perform zero-dimensional one-zone calculations that follow the density, chemical abundances, and temperature of gas in the central regions of dark matter haloes, including hierarchical growth and an evolving LW background. We begin by studying the physics of haloes subjected to a background that increases exponentially with redshift. We find that when the intensity increases more slowly than JLW(z)∝10−z/5, cooling in the past is a relatively small effect. We then self-consistently compute the cosmological LW background over z = 15–50 and find that cooling in the past due to an evolving background has a modest impact. Finally, we compare these results to three-dimensional hydrodynamical cosmological simulations with varying LW histories. While only a small number of haloes were simulated, the results are consistent with our one-zone calculations.","lang":"eng"}],"date_created":"2024-09-05T13:30:21Z","title":"High-redshift star formation in a time-dependent Lyman–Werner background","author":[{"first_name":"Eli","last_name":"Visbal","full_name":"Visbal, Eli"},{"first_name":"Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","full_name":"Haiman, Zoltán"},{"full_name":"Terrazas, Bryan","first_name":"Bryan","last_name":"Terrazas"},{"full_name":"Bryan, Greg L.","first_name":"Greg L.","last_name":"Bryan"},{"full_name":"Barkana, Rennan","last_name":"Barkana","first_name":"Rennan"}],"date_published":"2014-09-22T00:00:00Z","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication_status":"published","publication":"Monthly Notices of the Royal Astronomical Society","publisher":"Oxford University Press","citation":{"ieee":"E. Visbal, Z. Haiman, B. Terrazas, G. L. Bryan, and R. Barkana, “High-redshift star formation in a time-dependent Lyman–Werner background,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 445, no. 1. Oxford University Press, pp. 107–114, 2014.","short":"E. Visbal, Z. Haiman, B. Terrazas, G.L. Bryan, R. Barkana, Monthly Notices of the Royal Astronomical Society 445 (2014) 107–114.","mla":"Visbal, Eli, et al. “High-Redshift Star Formation in a Time-Dependent Lyman–Werner Background.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 445, no. 1, Oxford University Press, 2014, pp. 107–14, doi:<a href=\"https://doi.org/10.1093/mnras/stu1710\">10.1093/mnras/stu1710</a>.","ista":"Visbal E, Haiman Z, Terrazas B, Bryan GL, Barkana R. 2014. High-redshift star formation in a time-dependent Lyman–Werner background. Monthly Notices of the Royal Astronomical Society. 445(1), 107–114.","chicago":"Visbal, Eli, Zoltán Haiman, Bryan Terrazas, Greg L. Bryan, and Rennan Barkana. “High-Redshift Star Formation in a Time-Dependent Lyman–Werner Background.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2014. <a href=\"https://doi.org/10.1093/mnras/stu1710\">https://doi.org/10.1093/mnras/stu1710</a>.","ama":"Visbal E, Haiman Z, Terrazas B, Bryan GL, Barkana R. High-redshift star formation in a time-dependent Lyman–Werner background. <i>Monthly Notices of the Royal Astronomical Society</i>. 2014;445(1):107-114. doi:<a href=\"https://doi.org/10.1093/mnras/stu1710\">10.1093/mnras/stu1710</a>","apa":"Visbal, E., Haiman, Z., Terrazas, B., Bryan, G. L., &#38; Barkana, R. (2014). High-redshift star formation in a time-dependent Lyman–Werner background. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stu1710\">https://doi.org/10.1093/mnras/stu1710</a>"},"quality_controlled":"1","day":"22","_id":"17614","article_processing_charge":"No","oa_version":"Published Version","scopus_import":"1","article_type":"original","intvolume":"       445"},{"type":"journal_article","volume":792,"status":"public","publication_identifier":{"issn":["2041-8213"]},"language":[{"iso":"eng"}],"extern":"1","oa":1,"year":"2014","doi":"10.1088/2041-8205/792/1/l10","issue":"1","month":"08","arxiv":1,"intvolume":"       792","article_type":"original","scopus_import":"1","article_processing_charge":"No","oa_version":"Preprint","_id":"17617","day":"14","quality_controlled":"1","citation":{"mla":"Duffell, Paul C., et al. “The Migration of Gap-Opening Planets Is Not Locked to Viscous Disk Evolution.” <i>The Astrophysical Journal</i>, vol. 792, no. 1, L10, American Astronomical Society, 2014, doi:<a href=\"https://doi.org/10.1088/2041-8205/792/1/l10\">10.1088/2041-8205/792/1/l10</a>.","short":"P.C. Duffell, Z. Haiman, A.I. MacFadyen, D.J. D’Orazio, B.D. Farris, The Astrophysical Journal 792 (2014).","ieee":"P. C. Duffell, Z. Haiman, A. I. MacFadyen, D. J. D’Orazio, and B. D. Farris, “The migration of gap-opening planets is not locked to viscous disk evolution,” <i>The Astrophysical Journal</i>, vol. 792, no. 1. American Astronomical Society, 2014.","ista":"Duffell PC, Haiman Z, MacFadyen AI, D’Orazio DJ, Farris BD. 2014. The migration of gap-opening planets is not locked to viscous disk evolution. The Astrophysical Journal. 792(1), L10.","chicago":"Duffell, Paul C., Zoltán Haiman, Andrew I. MacFadyen, Daniel J. D’Orazio, and Brian D. Farris. “The Migration of Gap-Opening Planets Is Not Locked to Viscous Disk Evolution.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2014. <a href=\"https://doi.org/10.1088/2041-8205/792/1/l10\">https://doi.org/10.1088/2041-8205/792/1/l10</a>.","apa":"Duffell, P. C., Haiman, Z., MacFadyen, A. I., D’Orazio, D. J., &#38; Farris, B. D. (2014). The migration of gap-opening planets is not locked to viscous disk evolution. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.1088/2041-8205/792/1/l10\">https://doi.org/10.1088/2041-8205/792/1/l10</a>","ama":"Duffell PC, Haiman Z, MacFadyen AI, D’Orazio DJ, Farris BD. The migration of gap-opening planets is not locked to viscous disk evolution. <i>The Astrophysical Journal</i>. 2014;792(1). doi:<a href=\"https://doi.org/10.1088/2041-8205/792/1/l10\">10.1088/2041-8205/792/1/l10</a>"},"publisher":"American Astronomical Society","publication":"The Astrophysical Journal","publication_status":"published","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","article_number":"L10","date_published":"2014-08-14T00:00:00Z","title":"The migration of gap-opening planets is not locked to viscous disk evolution","author":[{"full_name":"Duffell, Paul C.","last_name":"Duffell","first_name":"Paul C."},{"first_name":"Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","full_name":"Haiman, Zoltán"},{"first_name":"Andrew I.","last_name":"MacFadyen","full_name":"MacFadyen, Andrew I."},{"full_name":"D'Orazio, Daniel J.","first_name":"Daniel J.","last_name":"D'Orazio"},{"full_name":"Farris, Brian D.","first_name":"Brian D.","last_name":"Farris"}],"external_id":{"arxiv":["1405.3711"]},"date_created":"2024-09-05T13:34:52Z","abstract":[{"lang":"eng","text":"Most standard descriptions of Type II migration state that massive, gap-opening planets must migrate at the viscous drift rate. This is based on the idea that the disk is separated into an inner and outer region and gas is considered unable to cross the gap. In fact, gas easily crosses the gap on horseshoe orbits, nullifying this necessary premise which would set the migration rate. In this work, it is demonstrated using highly accurate numerical calculations that the actual migration rate is dependent on disk and planet parameters, and can be significantly larger or smaller than the viscous drift rate. In the limiting case of a disk much more massive than the secondary, the migration rate saturates to a constant that is sensitive to disk parameters and is not necessarily of the order of the viscous rate. In the opposite limit of a low-mass disk, the migration rate decreases linearly with disk mass. Steady-state solutions in the low disk mass limit show no pile-up outside the secondary's orbit, and no corresponding drainage of the inner disk."}],"main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.1405.3711"}],"date_updated":"2024-09-24T08:08:57Z"},{"issue":"2","doi":"10.1088/0004-637x/783/2/134","extern":"1","oa":1,"year":"2014","language":[{"iso":"eng"}],"arxiv":1,"month":"02","type":"journal_article","publication_identifier":{"issn":["0004-637X","1538-4357"]},"status":"public","volume":783,"date_published":"2014-02-24T00:00:00Z","article_number":"134","publication_status":"published","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication":"The Astrophysical Journal","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.1310.0492"}],"date_updated":"2024-09-24T08:23:39Z","abstract":[{"lang":"eng","text":"We present the results of two-dimensional (2D) hydrodynamical simulations of circumbinary disk accretion using the finite-volume code DISCO. This code solves the 2D viscous Navier–Stokes equations on a high-resolution moving mesh which shears with the fluid flow, greatly reducing advection errors in comparison with a fixed grid. We perform a series of simulations for binary mass ratios in the range 0.026 ⩽ q ⩽ 1.0, each lasting longer than a viscous time so that we reach a quasi-steady accretion state. In each case, we find that gas is efficiently stripped from the inner edge of the circumbinary disk and enters the cavity along accretion streams, which feed persistent \"mini disks\" surrounding each black hole. We find that for q ≳ 0.1, the binary excites eccentricity in the inner region of the circumbinary disk, creating an overdense lump which gives rise to enhanced periodicity in the accretion rate. The dependence of the periodicity on mass ratio may provide a method for observationally inferring mass ratios from measurements of the accretion rate. We also find that for all mass ratios studied, the magnitude of the accretion onto the secondary is sufficient to drive the binary toward larger mass ratio. This suggests a mechanism for biasing mass-ratio distributions toward equal mass."}],"author":[{"first_name":"Brian D.","last_name":"Farris","full_name":"Farris, Brian D."},{"full_name":"Duffell, Paul","last_name":"Duffell","first_name":"Paul"},{"last_name":"MacFadyen","first_name":"Andrew I.","full_name":"MacFadyen, Andrew I."},{"first_name":"Zoltán","last_name":"Haiman","full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36"}],"title":"Binary black hole accretion from a circumbinary disk: Gas dynamics inside the central cavity","external_id":{"arxiv":["1310.0492"]},"date_created":"2024-09-05T13:48:18Z","day":"24","article_processing_charge":"No","oa_version":"Preprint","_id":"17620","article_type":"original","scopus_import":"1","intvolume":"       783","publisher":"American Astronomical Society","citation":{"chicago":"Farris, Brian D., Paul Duffell, Andrew I. MacFadyen, and Zoltán Haiman. “Binary Black Hole Accretion from a Circumbinary Disk: Gas Dynamics inside the Central Cavity.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2014. <a href=\"https://doi.org/10.1088/0004-637x/783/2/134\">https://doi.org/10.1088/0004-637x/783/2/134</a>.","ama":"Farris BD, Duffell P, MacFadyen AI, Haiman Z. Binary black hole accretion from a circumbinary disk: Gas dynamics inside the central cavity. <i>The Astrophysical Journal</i>. 2014;783(2). doi:<a href=\"https://doi.org/10.1088/0004-637x/783/2/134\">10.1088/0004-637x/783/2/134</a>","apa":"Farris, B. D., Duffell, P., MacFadyen, A. I., &#38; Haiman, Z. (2014). Binary black hole accretion from a circumbinary disk: Gas dynamics inside the central cavity. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.1088/0004-637x/783/2/134\">https://doi.org/10.1088/0004-637x/783/2/134</a>","short":"B.D. Farris, P. Duffell, A.I. MacFadyen, Z. Haiman, The Astrophysical Journal 783 (2014).","mla":"Farris, Brian D., et al. “Binary Black Hole Accretion from a Circumbinary Disk: Gas Dynamics inside the Central Cavity.” <i>The Astrophysical Journal</i>, vol. 783, no. 2, 134, American Astronomical Society, 2014, doi:<a href=\"https://doi.org/10.1088/0004-637x/783/2/134\">10.1088/0004-637x/783/2/134</a>.","ieee":"B. D. Farris, P. Duffell, A. I. MacFadyen, and Z. Haiman, “Binary black hole accretion from a circumbinary disk: Gas dynamics inside the central cavity,” <i>The Astrophysical Journal</i>, vol. 783, no. 2. American Astronomical Society, 2014.","ista":"Farris BD, Duffell P, MacFadyen AI, Haiman Z. 2014. Binary black hole accretion from a circumbinary disk: Gas dynamics inside the central cavity. The Astrophysical Journal. 783(2), 134."},"quality_controlled":"1"},{"type":"journal_article","volume":90,"status":"public","publication_identifier":{"issn":["1550-7998","1550-2368"]},"language":[{"iso":"eng"}],"year":"2014","extern":"1","oa":1,"doi":"10.1103/physrevd.90.123015","issue":"12","month":"12","arxiv":1,"intvolume":"        90","article_type":"original","scopus_import":"1","_id":"17623","oa_version":"Preprint","article_processing_charge":"No","day":"30","citation":{"ista":"Petri A, May M, Haiman Z, Kratochvil JM. 2014. Impact of spurious shear on cosmological parameter estimates from weak lensing observables. Physical Review D. 90(12), 123015.","ieee":"A. Petri, M. May, Z. Haiman, and J. M. Kratochvil, “Impact of spurious shear on cosmological parameter estimates from weak lensing observables,” <i>Physical Review D</i>, vol. 90, no. 12. American Physical Society, 2014.","short":"A. Petri, M. May, Z. Haiman, J.M. Kratochvil, Physical Review D 90 (2014).","mla":"Petri, Andrea, et al. “Impact of Spurious Shear on Cosmological Parameter Estimates from Weak Lensing Observables.” <i>Physical Review D</i>, vol. 90, no. 12, 123015, American Physical Society, 2014, doi:<a href=\"https://doi.org/10.1103/physrevd.90.123015\">10.1103/physrevd.90.123015</a>.","apa":"Petri, A., May, M., Haiman, Z., &#38; Kratochvil, J. M. (2014). Impact of spurious shear on cosmological parameter estimates from weak lensing observables. <i>Physical Review D</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevd.90.123015\">https://doi.org/10.1103/physrevd.90.123015</a>","ama":"Petri A, May M, Haiman Z, Kratochvil JM. Impact of spurious shear on cosmological parameter estimates from weak lensing observables. <i>Physical Review D</i>. 2014;90(12). doi:<a href=\"https://doi.org/10.1103/physrevd.90.123015\">10.1103/physrevd.90.123015</a>","chicago":"Petri, Andrea, Morgan May, Zoltán Haiman, and Jan M. Kratochvil. “Impact of Spurious Shear on Cosmological Parameter Estimates from Weak Lensing Observables.” <i>Physical Review D</i>. American Physical Society, 2014. <a href=\"https://doi.org/10.1103/physrevd.90.123015\">https://doi.org/10.1103/physrevd.90.123015</a>."},"quality_controlled":"1","publisher":"American Physical Society","publication":"Physical Review D","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication_status":"published","article_number":"123015","date_published":"2014-12-30T00:00:00Z","date_created":"2024-09-05T13:52:25Z","external_id":{"arxiv":["1409.5130"]},"author":[{"full_name":"Petri, Andrea","last_name":"Petri","first_name":"Andrea"},{"full_name":"May, Morgan","last_name":"May","first_name":"Morgan"},{"id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","full_name":"Haiman, Zoltán","last_name":"Haiman","first_name":"Zoltán"},{"full_name":"Kratochvil, Jan M.","last_name":"Kratochvil","first_name":"Jan M."}],"title":"Impact of spurious shear on cosmological parameter estimates from weak lensing observables","abstract":[{"lang":"eng","text":"Residual errors in shear measurements, after corrections for instrument systematics and atmospheric effects, can impact cosmological parameters derived from weak lensing observations. Here we combine convergence maps from our suite of ray-tracing simulations with random realizations of spurious shear. This allows us to quantify the errors and biases of the triplet (Ωm,w,σ8) derived from the power spectrum (PS), as well as from three different sets of non-Gaussian statistics of the lensing convergence field: Minkowski functionals (MF), low--order moments (LM), and peak counts (PK). Our main results are: (i) We find an order of magnitude smaller biases from the PS than in previous work. (ii) The PS and LM yield biases much smaller than the morphological statistics (MF, PK). (iii) For strictly Gaussian spurious shear with integrated amplitude as low as its current estimate of σ2sys≈10−7, biases from the PS and LM would be unimportant even for a survey with the statistical power of LSST. However, we find that for surveys larger than ≈100 deg2, non-Gaussianity in the noise (not included in our analysis) will likely be important and must be quantified to assess the biases. (iv) The morphological statistics (MF,PK) introduce important biases even for Gaussian noise, which must be corrected in large surveys. The biases are in different directions in (Ωm,w,σ8) parameter space, allowing self-calibration by combining multiple statistics. Our results warrant follow-up studies with more extensive lensing simulations and more accurate spurious shear estimates."}],"date_updated":"2024-09-24T08:39:41Z","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.1409.5130"}]},{"oa":1,"extern":"1","year":"2014","language":[{"iso":"eng"}],"page":"L80-L84","doi":"10.1093/mnrasl/slu184","issue":"1","month":"12","arxiv":1,"type":"journal_article","volume":447,"publication_identifier":{"issn":["1745-3933","1745-3925"]},"status":"public","publication_status":"published","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication":"Monthly Notices of the Royal Astronomical Society: Letters","date_published":"2014-12-19T00:00:00Z","author":[{"full_name":"Farris, Brian D.","first_name":"Brian D.","last_name":"Farris"},{"first_name":"Paul","last_name":"Duffell","full_name":"Duffell, Paul"},{"full_name":"MacFadyen, Andrew I.","last_name":"MacFadyen","first_name":"Andrew I."},{"first_name":"Zoltán","last_name":"Haiman","full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36"}],"title":"Binary black hole accretion during inspiral and merger","external_id":{"arxiv":["1409.5124"]},"date_created":"2024-09-05T13:54:34Z","main_file_link":[{"url":" https://doi.org/10.48550/arXiv.1409.5124","open_access":"1"}],"date_updated":"2024-09-24T08:50:47Z","abstract":[{"text":"We present the results of 2D, moving mesh, viscous hydrodynamical simulations of accretion on to merging supermassive black hole (SMBH) binaries. We include viscous heating, shock heating, and radiative cooling, and simulate the transition from the ‘pre-decoupling’ epoch, where the inspiral time-scale is longer than the viscous time-scale, to the ‘post-decoupling’ epoch, where the inspiral time-scale is shorter than the viscous time-scale. We find that there is no abrupt halt to the accretion at decoupling, but rather the accretion shows a slow decay, with significant accretion well after the expected decoupling. Moreover, we find that the luminosity in X-rays is significantly higher prior to the merger, as orbital energy from the SMBH binary is converted to heat via strong shocks inside the cavity, and radiated away. Following the merger, the cavity refills viscously and the accretion rate relaxes to the Shakura–Sunyaev value, while the X-ray luminosity drops as the shocks quickly dissipate.","lang":"eng"}],"article_type":"original","scopus_import":"1","intvolume":"       447","day":"19","oa_version":"Preprint","article_processing_charge":"No","_id":"17625","quality_controlled":"1","citation":{"ista":"Farris BD, Duffell P, MacFadyen AI, Haiman Z. 2014. Binary black hole accretion during inspiral and merger. Monthly Notices of the Royal Astronomical Society: Letters. 447(1), L80–L84.","short":"B.D. Farris, P. Duffell, A.I. MacFadyen, Z. Haiman, Monthly Notices of the Royal Astronomical Society: Letters 447 (2014) L80–L84.","mla":"Farris, Brian D., et al. “Binary Black Hole Accretion during Inspiral and Merger.” <i>Monthly Notices of the Royal Astronomical Society: Letters</i>, vol. 447, no. 1, Oxford University Press, 2014, pp. L80–84, doi:<a href=\"https://doi.org/10.1093/mnrasl/slu184\">10.1093/mnrasl/slu184</a>.","ieee":"B. D. Farris, P. Duffell, A. I. MacFadyen, and Z. Haiman, “Binary black hole accretion during inspiral and merger,” <i>Monthly Notices of the Royal Astronomical Society: Letters</i>, vol. 447, no. 1. Oxford University Press, pp. L80–L84, 2014.","ama":"Farris BD, Duffell P, MacFadyen AI, Haiman Z. Binary black hole accretion during inspiral and merger. <i>Monthly Notices of the Royal Astronomical Society: Letters</i>. 2014;447(1):L80-L84. doi:<a href=\"https://doi.org/10.1093/mnrasl/slu184\">10.1093/mnrasl/slu184</a>","apa":"Farris, B. D., Duffell, P., MacFadyen, A. I., &#38; Haiman, Z. (2014). Binary black hole accretion during inspiral and merger. <i>Monthly Notices of the Royal Astronomical Society: Letters</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnrasl/slu184\">https://doi.org/10.1093/mnrasl/slu184</a>","chicago":"Farris, Brian D., Paul Duffell, Andrew I. MacFadyen, and Zoltán Haiman. “Binary Black Hole Accretion during Inspiral and Merger.” <i>Monthly Notices of the Royal Astronomical Society: Letters</i>. Oxford University Press, 2014. <a href=\"https://doi.org/10.1093/mnrasl/slu184\">https://doi.org/10.1093/mnrasl/slu184</a>."},"publisher":"Oxford University Press"},{"volume":445,"publication_identifier":{"issn":["1365-2966","0035-8711"]},"status":"public","type":"journal_article","month":"10","year":"2014","extern":"1","oa":1,"language":[{"iso":"eng"}],"issue":"2","doi":"10.1093/mnras/stu1870","page":"1549-1557","quality_controlled":"1","citation":{"apa":"Inayoshi, K., &#38; Haiman, Z. (2014). Does disc fragmentation prevent the formation of supermassive stars in protogalaxies? <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stu1870\">https://doi.org/10.1093/mnras/stu1870</a>","ama":"Inayoshi K, Haiman Z. Does disc fragmentation prevent the formation of supermassive stars in protogalaxies? <i>Monthly Notices of the Royal Astronomical Society</i>. 2014;445(2):1549-1557. doi:<a href=\"https://doi.org/10.1093/mnras/stu1870\">10.1093/mnras/stu1870</a>","chicago":"Inayoshi, Kohei, and Zoltán Haiman. “Does Disc Fragmentation Prevent the Formation of Supermassive Stars in Protogalaxies?” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2014. <a href=\"https://doi.org/10.1093/mnras/stu1870\">https://doi.org/10.1093/mnras/stu1870</a>.","ista":"Inayoshi K, Haiman Z. 2014. Does disc fragmentation prevent the formation of supermassive stars in protogalaxies? Monthly Notices of the Royal Astronomical Society. 445(2), 1549–1557.","ieee":"K. Inayoshi and Z. Haiman, “Does disc fragmentation prevent the formation of supermassive stars in protogalaxies?,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 445, no. 2. Oxford University Press, pp. 1549–1557, 2014.","mla":"Inayoshi, Kohei, and Zoltán Haiman. “Does Disc Fragmentation Prevent the Formation of Supermassive Stars in Protogalaxies?” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 445, no. 2, Oxford University Press, 2014, pp. 1549–57, doi:<a href=\"https://doi.org/10.1093/mnras/stu1870\">10.1093/mnras/stu1870</a>.","short":"K. Inayoshi, Z. Haiman, Monthly Notices of the Royal Astronomical Society 445 (2014) 1549–1557."},"publisher":"Oxford University Press","article_type":"original","scopus_import":"1","intvolume":"       445","day":"09","_id":"17637","article_processing_charge":"No","oa_version":"Published Version","date_created":"2024-09-06T07:15:08Z","title":"Does disc fragmentation prevent the formation of supermassive stars in protogalaxies?","author":[{"first_name":"Kohei","last_name":"Inayoshi","full_name":"Inayoshi, Kohei"},{"last_name":"Haiman","first_name":"Zoltán","full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36"}],"date_updated":"2024-09-24T11:33:30Z","main_file_link":[{"url":"https://doi.org/10.1093/mnras/stu1870","open_access":"1"}],"abstract":[{"lang":"eng","text":"Supermassive stars (SMSs; >10^5 Msun) formed in the first protogalaxies with virial temperature T_vir>10^4 K are expected to collapse into seeds of supermassive black hole (SMBHs) in the high-redshift universe (z>7). Fragmentation of the primordial gas is, however, a possible obstacle to SMS formation. We discuss the expected properties of a compact, metal-free, marginally unstable nuclear protogalactic disk, and the fate of the clumps formed in the disk by gravitational instability. Interior to a characteristic radius R_f=few*10^{-2} pc, the disk fragments into massive clumps with M_c~30 Msun. The clumps grow via accretion and migrate inward rapidly on a timescale of ~10^4 yr, which is comparable or shorter than the Kelvin-Helmholz time >10^4 yr. Some clumps may evolve to zero-age main sequence stars and halt gas accretion by radiative feedback, but most of the clumps can migrate inward and merge with the central protostar before forming massive stars. Moreover, we found that dust-induced-fragmentation in metal-enriched gas does not modify these conclusions unless Z> 3*10^{-4} Zsun, because clump migration below this metallicity remains as rapid as in the primordial case. Our results suggest that fragmentation of a compact, metal--poor disk can not prevent the formation of a SMS."}],"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication_status":"published","publication":"Monthly Notices of the Royal Astronomical Society","date_published":"2014-10-09T00:00:00Z"},{"citation":{"chicago":"Fernandez, Ricardo, Greg L. Bryan, Zoltán Haiman, and Miao Li. “H2 Suppression with Shocking Inflows: Testing a Pathway for Supermassive Black Hole Formation.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2014. <a href=\"https://doi.org/10.1093/mnras/stu230\">https://doi.org/10.1093/mnras/stu230</a>.","apa":"Fernandez, R., Bryan, G. L., Haiman, Z., &#38; Li, M. (2014). H2 suppression with shocking inflows: Testing a pathway for supermassive black hole formation. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stu230\">https://doi.org/10.1093/mnras/stu230</a>","ama":"Fernandez R, Bryan GL, Haiman Z, Li M. H2 suppression with shocking inflows: Testing a pathway for supermassive black hole formation. <i>Monthly Notices of the Royal Astronomical Society</i>. 2014;439(4):3798-3807. doi:<a href=\"https://doi.org/10.1093/mnras/stu230\">10.1093/mnras/stu230</a>","short":"R. Fernandez, G.L. Bryan, Z. Haiman, M. Li, Monthly Notices of the Royal Astronomical Society 439 (2014) 3798–3807.","mla":"Fernandez, Ricardo, et al. “H2 Suppression with Shocking Inflows: Testing a Pathway for Supermassive Black Hole Formation.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 439, no. 4, Oxford University Press, 2014, pp. 3798–807, doi:<a href=\"https://doi.org/10.1093/mnras/stu230\">10.1093/mnras/stu230</a>.","ieee":"R. Fernandez, G. L. Bryan, Z. Haiman, and M. Li, “H2 suppression with shocking inflows: Testing a pathway for supermassive black hole formation,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 439, no. 4. Oxford University Press, pp. 3798–3807, 2014.","ista":"Fernandez R, Bryan GL, Haiman Z, Li M. 2014. H2 suppression with shocking inflows: Testing a pathway for supermassive black hole formation. Monthly Notices of the Royal Astronomical Society. 439(4), 3798–3807."},"quality_controlled":"1","publisher":"Oxford University Press","intvolume":"       439","scopus_import":"1","article_type":"original","oa_version":"Published Version","article_processing_charge":"No","_id":"17642","day":"26","title":"H2 suppression with shocking inflows: Testing a pathway for supermassive black hole formation","author":[{"last_name":"Fernandez","first_name":"Ricardo","full_name":"Fernandez, Ricardo"},{"full_name":"Bryan, Greg L.","first_name":"Greg L.","last_name":"Bryan"},{"last_name":"Haiman","first_name":"Zoltán","full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36"},{"last_name":"Li","first_name":"Miao","full_name":"Li, Miao"}],"date_created":"2024-09-06T07:21:52Z","abstract":[{"text":"The presence of quasars at redshifts z > 6 indicates the existence of supermassive black holes (SMBHs) as massive as a few times 10^9 Msun, challenging models for SMBH formation. One pathway is through the direct collapse of gas in T_{vir} > 10^4 K halos; however, this requires the suppression of H_2 cooling to prevent fragmentation. In this paper, we examine a proposed new mechanism for this suppression which relies on cold-mode accretion flows leading to shocks at high densities (n > 10^4 cm^{-3}) and temperatures (T > 10^4 K). In such gas, H_2 is efficiently collisionally dissociated. We use high-resolution numerical simulations to test this idea, demonstrating that such halos typically have lower temperature progenitors, in which cooling is efficient. Those halos do show filamentary flows; however, the gas shocks at or near the virial radius (at low densities), thus preventing the proposed collisional mechanism from operating. We do find that, if we artificially suppress H_2 formation with a high UV background, so as to allow gas in the halo center to enter the high-temperature, high-density \"zone of no return\", it will remain there even if the UV flux is turned off, collapsing to high density at high temperature. Due to computational limitations, we simulated only three halos. However, we demonstrate, using Monte Carlo calculations of 10^6 halo merger histories, that a few rare halos could assemble rapidly enough to avoid efficient H_2 cooling in all of their progenitor halos, provided that the UV background exceeds J_{21} ~ few at redshifts as high as z ~ 20","lang":"eng"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1093/mnras/stu230"}],"date_updated":"2024-09-24T11:56:43Z","publication":"Monthly Notices of the Royal Astronomical Society","publication_status":"published","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","date_published":"2014-02-26T00:00:00Z","volume":439,"status":"public","publication_identifier":{"issn":["1365-2966","0035-8711"]},"type":"journal_article","month":"02","language":[{"iso":"eng"}],"oa":1,"extern":"1","year":"2014","page":"3798-3807","doi":"10.1093/mnras/stu230","issue":"4"},{"language":[{"iso":"eng"}],"year":"2014","extern":"1","oa":1,"issue":"1","doi":"10.1093/mnrasl/slu063","page":"L100-L104","month":"06","type":"journal_article","volume":442,"status":"public","publication_identifier":{"issn":["1745-3933","1745-3925"]},"publication":"Monthly Notices of the Royal Astronomical Society: Letters","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publication_status":"published","date_published":"2014-06-10T00:00:00Z","date_created":"2024-09-06T07:22:36Z","author":[{"first_name":"Eli","last_name":"Visbal","full_name":"Visbal, Eli"},{"last_name":"Haiman","first_name":"Zoltán","full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36"},{"full_name":"Bryan, Greg L.","first_name":"Greg L.","last_name":"Bryan"}],"title":"A no-go theorem for direct collapse black holes without a strong ultraviolet background","abstract":[{"lang":"eng","text":"Explaining the existence of supermassive black holes (SMBHs) larger than ∼10^9M⊙ at redshifts z>∼6 remains an open theoretical question. One possibility is that gas collapsing rapidly in pristine atomic cooling halos (Tvir>∼10^4K) produces 10^4−10^6M⊙ black holes. Previous studies have shown that the formation of such a black hole requires a strong UV background to prevent molecular hydrogen cooling and gas fragmentation. Recently it has been proposed that a high UV background may not be required for halos that accrete material extremely rapidly or for halos where gas cooling is delayed due to a high baryon-dark matter streaming velocity. In this work, we point out that building up a halo with Tvir>∼104K before molecular cooling becomes efficient is not sufficient for forming a direct collapse black hole (DCBH). Though molecular hydrogen formation may be delayed, it will eventually form at high densities leading to efficient cooling and fragmentation. The only obvious way that molecular cooling could be avoided in the absence of strong UV radiation, is for gas to reach high enough density to cause collisional dissociation of molecular hydrogen (∼10^4 cm^−3) before cooling occurs. However, we argue that the minimum core entropy, set by the entropy of the intergalactic medium (IGM) when it decouples from the CMB, prevents this from occurring for realistic halo masses. This is confirmed by hydrodynamical cosmological simulations without radiative cooling. We explain the maximum density versus halo mass in these simulations with simple entropy arguments. The low densities found suggest that DCBH formation indeed requires a strong UV background."}],"date_updated":"2024-09-24T12:04:03Z","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1093/mnrasl/slu063"}],"intvolume":"       442","article_type":"original","scopus_import":"1","_id":"17643","article_processing_charge":"No","oa_version":"Published Version","day":"10","quality_controlled":"1","citation":{"apa":"Visbal, E., Haiman, Z., &#38; Bryan, G. L. (2014). A no-go theorem for direct collapse black holes without a strong ultraviolet background. <i>Monthly Notices of the Royal Astronomical Society: Letters</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnrasl/slu063\">https://doi.org/10.1093/mnrasl/slu063</a>","ama":"Visbal E, Haiman Z, Bryan GL. A no-go theorem for direct collapse black holes without a strong ultraviolet background. <i>Monthly Notices of the Royal Astronomical Society: Letters</i>. 2014;442(1):L100-L104. doi:<a href=\"https://doi.org/10.1093/mnrasl/slu063\">10.1093/mnrasl/slu063</a>","chicago":"Visbal, Eli, Zoltán Haiman, and Greg L. Bryan. “A No-Go Theorem for Direct Collapse Black Holes without a Strong Ultraviolet Background.” <i>Monthly Notices of the Royal Astronomical Society: Letters</i>. Oxford University Press, 2014. <a href=\"https://doi.org/10.1093/mnrasl/slu063\">https://doi.org/10.1093/mnrasl/slu063</a>.","ista":"Visbal E, Haiman Z, Bryan GL. 2014. A no-go theorem for direct collapse black holes without a strong ultraviolet background. Monthly Notices of the Royal Astronomical Society: Letters. 442(1), L100–L104.","mla":"Visbal, Eli, et al. “A No-Go Theorem for Direct Collapse Black Holes without a Strong Ultraviolet Background.” <i>Monthly Notices of the Royal Astronomical Society: Letters</i>, vol. 442, no. 1, Oxford University Press, 2014, pp. L100–04, doi:<a href=\"https://doi.org/10.1093/mnrasl/slu063\">10.1093/mnrasl/slu063</a>.","short":"E. Visbal, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical Society: Letters 442 (2014) L100–L104.","ieee":"E. Visbal, Z. Haiman, and G. L. Bryan, “A no-go theorem for direct collapse black holes without a strong ultraviolet background,” <i>Monthly Notices of the Royal Astronomical Society: Letters</i>, vol. 442, no. 1. Oxford University Press, pp. L100–L104, 2014."},"publisher":"Oxford University Press"}]