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相关论文: Evolution from BCS to BEC superfluidity in the pre…

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We review the study of the superfluid phase transition in a system of fermions whose interaction can be tuned continuously along the crossover from Bardeen-Cooper-Schrieffer (BCS) superconducting phase to a Bose-Einstein condensate (BEC),…

量子气体 · 物理学 2021-05-06 Luca Dell'Anna , Stefano Grava

We obtain the superfluid transition temperature of equal Rashba-Dresselhaus spin-orbit and Rabi-coupled Fermi superfluids, from the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC) regimes in three dimensions for tunable…

量子气体 · 物理学 2022-06-22 Philip D. Powell , Gordon Baym , Carlos Sa de Melo

We investigated effects of a Rashba-type spin-orbit coupling (SOC) on the condensed density and superfluid density tensor of a two-component Fermi gas in the BCS-BEC crossover at zero temperature. In anisotropic three dimensions (3D), we…

量子气体 · 物理学 2015-05-30 Kezhao Zhou , Zhidong Zhang

We obtain the superfluid transition temperature of equal Rashba-Dresselhaus spin-orbit and Rabi coupled Fermi superfluids, from the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC) regimes in three dimensions. Spin-orbit…

量子气体 · 物理学 2017-09-22 Philip D Powell , Gordon Baym , C. A. R. Sa de Melo

We study the BCS-Bose Einstein Condensation (BEC) crossover of a three dimensional spin polarized Fermi gas with Rashba spin-orbital-coupling (SOC). At finite temperature, the effects of non-condensed pairs due to the thermal excitation are…

量子气体 · 物理学 2016-06-24 Chang-Yan Wang , Yan He

The recent experimental realization of spin-orbit coupling for ultra-cold atoms has generated much interest in the physics of spin-orbit coupled degenerate Fermi gases. Although recently the BCS-BEC crossover in three-dimensional (3D)…

量子气体 · 物理学 2012-01-05 Gang Chen , Ming Gong , Chuanwei Zhang

In this paper we develop a quantum field approach to reveal the thermodynamic properties of the trapped BEC with the equal Rashba and Dresselhaus spin-orbit couplings. In the experimentally-feasible regime, the phase transition from the…

量子气体 · 物理学 2015-06-11 Jinling Lian , Yuanwei Zhang , J. -Q. Liang , Jie Ma , Gang Chen , Suotang Jia

We consider the evolution of superfluid properties of a three dimensional p-wave Fermi gas from weak (BCS) to strong (BEC) coupling as a function of scattering volume. We analyse the order parameter, quasi-particle excitation spectrum,…

其他凝聚态物理 · 物理学 2009-11-11 M. Iskin , C. A. R. Sá de Melo

We investigate the Berezinskii-Kosterlitz-Thouless (BKT) transition in a two-dimensional (2D) Fermi gas with spin-orbit coupling (SOC), as a function of the two-body binding energy and a perpendicular Zeeman field. By including a generic…

量子气体 · 物理学 2014-10-22 Jeroen P. A. Devreese , Jacques Tempere , Carlos A. R. Sá de Melo

We investigate theoretically BEC-BCS crossover physics in the presence of a Rashba spin-orbit coupling in a system of two-component Fermi gas with and without a Zeeman field that breaks the population balance between the two components. A…

量子气体 · 物理学 2012-11-26 Lei Jiang , Xia-Ji Liu , Hui Hu , Han Pu

We consider the spin-orbit coupled Bose gas with repulsive mean-field interparticle interactions. We analyze the phase diagram of the system varying the temperature $T>0$, the chemical potentials, as well as interparticle and spin-orbit…

量子气体 · 物理学 2025-02-05 Pawel Jakubczyk , Marek Napiórkowski

We investigate magnetic properties and strong coupling corrections in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover regime of an ultracold Fermi gas. Within the framework of an extended $T$-matrix theory, we…

量子气体 · 物理学 2015-10-16 Hiroyuki Tajima , Ryo Hanai , Ryota Watanabe , Yoji Ohashi

We present a theoretical description and numerical simulations of the superconducting transition in hybrid structures including strong spin-orbit interactions. The spin-orbit coupling is taken to be of Rashba type for concreteness, and we…

超导电性 · 物理学 2018-03-07 Haakon T. Simensen , Jacob Linder

We study the superconducting transition in a two-dimensional electron gas with strong Rashba spin-orbit coupling. We assume low electron density, such that only the majority spin band participates in the transition. We show that the…

超导电性 · 物理学 2019-03-13 Hassan Allami , O. A. Starykh , D. A. Pesin

We investigate the thermal physics of a Bose-Hubbard model with Rashba spin-orbit coupling starting from a strong coupling mean-field ground state. The essential role of the spin-orbit coupling $\left(\gamma\right)$ is to promote…

强关联电子 · 物理学 2019-05-22 Arijit Dutta , Abhishek Joshi , K. Sengupta , Pinaki Majumdar

We calculate the superconducting $T_c$ for a system which experiences Rashba spin-orbit interactions. Contrary to the usual case where the electron-electron interaction is assumed to be wave vector-independent, where superconductivity is…

超导电性 · 物理学 2018-09-05 Joel Hutchinson , J. E. Hirsch , Frank Marsiglio

By adopting a $T$-matrix-based method within the $G_0G$ approximation for the pair susceptibility, we study the effects of the pairing fluctuation on the three-dimensional spin-orbit coupled Fermi gases at finite temperature. The critical…

量子气体 · 物理学 2013-06-11 Lianyi He , Xu-Guang Huang , Hui Hu , Xia-Ji Liu

We investigate the pair condensation of a two-spin-component Fermi gas in the presence of both Rashba and Dresselhaus spin-orbit couplings. We calculate the condensate fraction in the BCS-BEC crossover both in two and in three dimensions by…

量子气体 · 物理学 2012-12-04 L. Dell'Anna , G. Mazzarella , L. Salasnich

We present a systematic theoretical study of the BCS-BEC crossover in two-dimensional Fermi gases with Rashba spin-orbit coupling (SOC). By solving the exact two-body problem in the presence of an attractive short-range interaction we show…

量子气体 · 物理学 2012-04-04 Lianyi He , Xu-Guang Huang

We discuss topological phase transitions in ultra-cold Fermi superfluids induced by interactions and artificial spin orbit fields. We construct the phase diagram for population imbalanced systems at zero and finite temperatures, and analyze…

量子气体 · 物理学 2012-11-13 Kangjun Seo , Li Han , C. A. R. Sá de Melo
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