{"article_type":"original","citation":{"short":"L. Rammelmüller, D. Huber, M. Čufar, J. Brand, H.-W. Hammer, A. Volosniev, SciPost Physics 14 (2023).","apa":"Rammelmüller, L., Huber, D., Čufar, M., Brand, J., Hammer, H.-W., &#38; Volosniev, A. (2023). Magnetic impurity in a one-dimensional few-fermion system. <i>SciPost Physics</i>. SciPost Foundation. <a href=\"https://doi.org/10.21468/scipostphys.14.1.006\">https://doi.org/10.21468/scipostphys.14.1.006</a>","ista":"Rammelmüller L, Huber D, Čufar M, Brand J, Hammer H-W, Volosniev A. 2023. Magnetic impurity in a one-dimensional few-fermion system. SciPost Physics. 14(1), 006.","chicago":"Rammelmüller, Lukas, David Huber, Matija Čufar, Joachim Brand, Hans-Werner Hammer, and Artem Volosniev. “Magnetic Impurity in a One-Dimensional Few-Fermion System.” <i>SciPost Physics</i>. SciPost Foundation, 2023. <a href=\"https://doi.org/10.21468/scipostphys.14.1.006\">https://doi.org/10.21468/scipostphys.14.1.006</a>.","ama":"Rammelmüller L, Huber D, Čufar M, Brand J, Hammer H-W, Volosniev A. Magnetic impurity in a one-dimensional few-fermion system. <i>SciPost Physics</i>. 2023;14(1). doi:<a href=\"https://doi.org/10.21468/scipostphys.14.1.006\">10.21468/scipostphys.14.1.006</a>","ieee":"L. Rammelmüller, D. Huber, M. Čufar, J. Brand, H.-W. Hammer, and A. Volosniev, “Magnetic impurity in a one-dimensional few-fermion system,” <i>SciPost Physics</i>, vol. 14, no. 1. SciPost Foundation, 2023.","mla":"Rammelmüller, Lukas, et al. “Magnetic Impurity in a One-Dimensional Few-Fermion System.” <i>SciPost Physics</i>, vol. 14, no. 1, 006, SciPost Foundation, 2023, doi:<a href=\"https://doi.org/10.21468/scipostphys.14.1.006\">10.21468/scipostphys.14.1.006</a>."},"_id":"13278","article_number":"006","language":[{"iso":"eng"}],"author":[{"full_name":"Rammelmüller, Lukas","first_name":"Lukas","last_name":"Rammelmüller"},{"last_name":"Huber","first_name":"David","full_name":"Huber, David"},{"full_name":"Čufar, Matija","last_name":"Čufar","first_name":"Matija"},{"full_name":"Brand, Joachim","last_name":"Brand","first_name":"Joachim"},{"last_name":"Hammer","first_name":"Hans-Werner","full_name":"Hammer, Hans-Werner"},{"orcid":"0000-0003-0393-5525","last_name":"Volosniev","first_name":"Artem","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","full_name":"Volosniev, Artem"}],"has_accepted_license":"1","publication":"SciPost Physics","doi":"10.21468/scipostphys.14.1.006","publication_identifier":{"issn":["2542-4653"]},"external_id":{"arxiv":["2204.01606"],"isi":["001000325800008"]},"keyword":["General Physics and Astronomy"],"isi":1,"file_date_updated":"2023-07-31T08:44:38Z","ddc":["530"],"volume":14,"intvolume":"        14","year":"2023","issue":"1","date_published":"2023-01-24T00:00:00Z","publication_status":"published","abstract":[{"text":"We present a numerical analysis of spin-1/2 fermions in a one-dimensional harmonic potential in the presence of a magnetic point-like impurity at the center of the trap. The model represents a few-body analogue of a magnetic impurity in the vicinity of an s-wave superconductor. Already for a few particles we find a ground-state level crossing between sectors with different fermion parities. We interpret this crossing as a few-body precursor of a quantum phase transition, which occurs when the impurity \"breaks\" a Cooper pair. This picture is further corroborated by analyzing density-density correlations in momentum space. Finally, we discuss how the system may be realized with existing cold-atoms platforms.","lang":"eng"}],"department":[{"_id":"MiLe"}],"day":"24","type":"journal_article","file":[{"content_type":"application/pdf","access_level":"open_access","creator":"dernst","file_name":"2023_SciPostPhysics_Rammelmueller.pdf","checksum":"ffdb70b9ae7aa45ea4ea6096ecbd6431","relation":"main_file","success":1,"file_id":"13328","file_size":1163444,"date_created":"2023-07-31T08:44:38Z","date_updated":"2023-07-31T08:44:38Z"}],"date_updated":"2023-12-13T11:39:32Z","tmp":{"image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"month":"01","article_processing_charge":"No","status":"public","quality_controlled":"1","title":"Magnetic impurity in a one-dimensional few-fermion system","date_created":"2023-07-24T10:48:23Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Published Version","oa":1,"scopus_import":"1","publisher":"SciPost Foundation"}