Collective excitations in one-dimensional ultracold Fermi gases: Comparative study

被引：1
|
作者：
Wei Li [1 ]
Gao Xianlong [1 ]
Kollath, Corinna [2 ]
Polini, Marco [1 ,3 ,4 ]
机构：
[1] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China
[2] Ecole Polytech, Ctr Phys Theor, F-91128 Palaiseau, France
[3] NEST CNR INFM, I-56126 Pisa, Italy
[4] Scuola Normale Super Pisa, I-56126 Pisa, Italy
来源：
PHYSICAL REVIEW B | 2008年 / 78卷 / 19期
关键词：
density functional theory; exchange interactions (electron); fermion systems; many-body problems; renormalisation;
D O I：
10.1103/PhysRevB.78.195109
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Time-dependent density-functional theory (TDDFT) is a powerful tool in studying the nonequilibrium dynamics of inhomogeneous interacting many-body systems. Here we show that the simple adiabatic local-spin-density approximation for the time-dependent exchange-correlation potential is surprisingly accurate in describing collective density and spin dynamics in strongly correlated one-dimensional ultracold Fermi gases. Our conclusions are based on extensive comparisons between our TDDFT results and accurate results based on the adaptive time-dependent density-matrix renormalization-group method.
引用
收藏
页数：9
相关论文
共 50 条
  • [41] Superfluidity and pairing phenomena in ultracold atomic Fermi gases in one-dimensional optical lattices. I. Balanced case
    Wang, Jibiao
    Zhang, Leifeng
    Yu, Yi
    Lee, Chaohong
    Chen, Qijin
    PHYSICAL REVIEW A, 2020, 101 (05)
  • [42] Optomechanics with interacting Fermi gases: a new approach to detecting spin-charge separation in one-dimensional ultracold atom systems
    Sun, Qing
    Liu, W. M.
    Ji, An-Chun
    NEW JOURNAL OF PHYSICS, 2013, 15
  • [43] Engineering Weyl Superfluid in Ultracold Fermionic Gases by One-Dimensional Optical Superlattices
    Beibing Huang
    Journal of Low Temperature Physics, 2018, 190 : 78 - 89
  • [44] Violation of the Wiedemann-Franz law for one-dimensional ultracold atomic gases
    Filippone, Michele
    Hekking, Frank
    Minguzzi, Anna
    PHYSICAL REVIEW A, 2016, 93 (01)
  • [45] COLLECTIVE EXCITATIONS IN CERTAIN ONE-DIMENSIONAL ISING SYSTEM WITH EXTENDED INTERACTIONS
    IGARASHI, J
    PROGRESS OF THEORETICAL PHYSICS, 1977, 57 (04): : 1209 - 1222
  • [46] Engineering Weyl Superfluid in Ultracold Fermionic Gases by One-Dimensional Optical Superlattices
    Huang, Beibing
    JOURNAL OF LOW TEMPERATURE PHYSICS, 2018, 190 (1-2) : 78 - 89
  • [47] Collective excitations of superfluid Fermi gases near the transition temperature
    Klimin, S. N.
    Tempere, J.
    Kurkjian, H.
    PHYSICAL REVIEW A, 2021, 103 (04)
  • [48] Collective excitations of degenerate Fermi gases in anisotropic parabolic traps
    Csordaás, Andraás
    Graham, Robert
    Physical Review A - Atomic, Molecular, and Optical Physics, 2001, 63 (01): : 013606 - 013601
  • [49] Correlated dynamics of collective droplet excitations in a one-dimensional harmonic trap
    Englezos, I. A.
    Mistakidis, S. I.
    Schmelcher, P.
    PHYSICAL REVIEW A, 2023, 107 (02)
  • [50] Phononic collective excitations in superfluid Fermi gases at nonzero temperatures
    Klimin, S. N.
    Tempere, J.
    Kurkjian, H.
    PHYSICAL REVIEW A, 2019, 100 (06)
12345