{"article_processing_charge":"No","isi":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","department":[{"_id":"MiLe"}],"publisher":"IOP Publishing","day":"01","file":[{"access_level":"open_access","checksum":"dc67b60f2e50e9ef2bd820ca0d7333d2","date_created":"2022-07-18T06:33:13Z","content_type":"application/pdf","date_updated":"2022-07-18T06:33:13Z","success":1,"file_name":"2022_NewJournalPhysics_Brauneis.pdf","creator":"dernst","file_id":"11594","relation":"main_file","file_size":3415721}],"_id":"11590","oa":1,"scopus_import":"1","language":[{"iso":"eng"}],"publication":"New Journal of Physics","publication_status":"published","date_created":"2022-07-17T22:01:55Z","file_date_updated":"2022-07-18T06:33:13Z","volume":24,"abstract":[{"lang":"eng","text":"We investigate the ground-state properties of weakly repulsive one-dimensional bosons in the presence of an attractive zero-range impurity potential. First, we derive mean-field solutions to the problem on a finite ring for the two asymptotic cases: (i) all bosons are bound to the impurity and (ii) all bosons are in a scattering state. Moreover, we derive the critical line that separates these regimes in the parameter space. In the thermodynamic limit, this critical line determines the maximum number of bosons that can be bound by the impurity potential, forming an artificial atom. Second, we validate the mean-field results using the flow equation approach and the multi-layer multi-configuration time-dependent Hartree method for atomic mixtures. While beyond-mean-field effects destroy long-range order in the Bose gas, the critical boson number is unaffected. Our findings are important for understanding such artificial atoms in low-density Bose gases with static and mobile impurities."}],"year":"2022","month":"06","ec_funded":1,"publication_identifier":{"issn":["1367-2630"]},"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships"},{"grant_number":"801770","_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","call_identifier":"H2020"}],"quality_controlled":"1","title":"Artificial atoms from cold bosons in one dimension","citation":{"ama":"Brauneis F, Backert TG, Mistakidis SI, Lemeshko M, Hammer HW, Volosniev A. Artificial atoms from cold bosons in one dimension. <i>New Journal of Physics</i>. 2022;24(6). doi:<a href=\"https://doi.org/10.1088/1367-2630/ac78d8\">10.1088/1367-2630/ac78d8</a>","ieee":"F. Brauneis, T. G. Backert, S. I. Mistakidis, M. Lemeshko, H. W. Hammer, and A. Volosniev, “Artificial atoms from cold bosons in one dimension,” <i>New Journal of Physics</i>, vol. 24, no. 6. IOP Publishing, 2022.","mla":"Brauneis, Fabian, et al. “Artificial Atoms from Cold Bosons in One Dimension.” <i>New Journal of Physics</i>, vol. 24, no. 6, 063036, IOP Publishing, 2022, doi:<a href=\"https://doi.org/10.1088/1367-2630/ac78d8\">10.1088/1367-2630/ac78d8</a>.","short":"F. Brauneis, T.G. Backert, S.I. Mistakidis, M. Lemeshko, H.W. Hammer, A. Volosniev, New Journal of Physics 24 (2022).","apa":"Brauneis, F., Backert, T. G., Mistakidis, S. I., Lemeshko, M., Hammer, H. W., &#38; Volosniev, A. (2022). Artificial atoms from cold bosons in one dimension. <i>New Journal of Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1367-2630/ac78d8\">https://doi.org/10.1088/1367-2630/ac78d8</a>","ista":"Brauneis F, Backert TG, Mistakidis SI, Lemeshko M, Hammer HW, Volosniev A. 2022. Artificial atoms from cold bosons in one dimension. New Journal of Physics. 24(6), 063036.","chicago":"Brauneis, Fabian, Timothy G. Backert, Simeon I. Mistakidis, Mikhail Lemeshko, Hans Werner Hammer, and Artem Volosniev. “Artificial Atoms from Cold Bosons in One Dimension.” <i>New Journal of Physics</i>. IOP Publishing, 2022. <a href=\"https://doi.org/10.1088/1367-2630/ac78d8\">https://doi.org/10.1088/1367-2630/ac78d8</a>."},"date_published":"2022-06-01T00:00:00Z","intvolume":"        24","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"has_accepted_license":"1","doi":"10.1088/1367-2630/ac78d8","type":"journal_article","article_type":"original","article_number":"063036","ddc":["530"],"acknowledgement":"This work has received funding from the DFG Project No. 413495248 [VO 2437/1-1] (FB, H-WH, AGV) and European Union's Horizon 2020 research and innovation programme under the Marie Skĺodowska-Curie Grant Agreement No. 754411 (AGV). ML acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). SIM acknowledges support from the NSF through a grant for ITAMP at Harvard University.","issue":"6","author":[{"first_name":"Fabian","last_name":"Brauneis","full_name":"Brauneis, Fabian"},{"first_name":"Timothy G.","last_name":"Backert","full_name":"Backert, Timothy G."},{"first_name":"Simeon I.","last_name":"Mistakidis","full_name":"Mistakidis, Simeon I."},{"full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","first_name":"Mikhail","last_name":"Lemeshko"},{"full_name":"Hammer, Hans Werner","first_name":"Hans Werner","last_name":"Hammer"},{"full_name":"Volosniev, Artem","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","first_name":"Artem","orcid":"0000-0003-0393-5525","last_name":"Volosniev"}],"status":"public","external_id":{"isi":["000818530000001"]},"date_updated":"2023-08-03T11:57:41Z","oa_version":"Published Version"}