Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 양종만 | - |
dc.date.accessioned | 2017-02-15T08:02:40Z | - |
dc.date.available | 2017-02-15T08:02:40Z | - |
dc.date.issued | 2006 | - |
dc.identifier.issn | 1063-777X | - |
dc.identifier.other | OAK-3650 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/234154 | - |
dc.description.abstract | Finding the distinct features of the crossover from the regime of large overlapping Cooper pairs to the limit of non-overlapping pairs of fermions (Shafroth pairs) in multi-component Fermi systems remains a topical problem in a quantum many-body theory. Here this transition is studied by calculating the two-body density, spin and isospin correlation functions in dilute two-component Fermi superfluid, taking as an example an infinite system of protons and neutrons (nuclear matter). It is shown that criterion of the crossover [Phys. Rev. Lett. 95, 090402 (2005)], formulated for ultracold fermionic atomic gases and consisting in the change of the sign of the density correlation function at low momentum transfer, fails to describe correctly the density-driven BEC-BCS transition at finite isospin asymmetry or finite temperature. As an unambiguous signature of the BEC-BCS transition, one can use the presence (BCS regime) or absence (BEC regime) of the singularity in the momentum distribution of the quasiparticle density of states. © 2006 American Institute of Physics. | - |
dc.language | English | - |
dc.title | Density, spin, and isospin correlations in low-density two-component Fermi superfluid | - |
dc.type | Article | - |
dc.relation.issue | 10 | - |
dc.relation.volume | 32 | - |
dc.relation.index | SCI | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.startpage | 906 | - |
dc.relation.lastpage | 912 | - |
dc.relation.journaltitle | Low Temperature Physics | - |
dc.identifier.doi | 10.1063/1.2364477 | - |
dc.identifier.wosid | WOS:000241917700002 | - |
dc.identifier.scopusid | 2-s2.0-33751303024 | - |
dc.author.google | Isayev A.A. | - |
dc.author.google | Yang J. | - |
dc.contributor.scopusid | 양종만(15039320200;8833888100) | - |
dc.date.modifydate | 20230118100842 | - |