BCS-BEC crossover in dense relativistic matter: Collective excitations

被引：31
|
作者：
Brauner, Tomas [1 ]
机构：
[1] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany
来源：
PHYSICAL REVIEW D | 2008年 / 77卷 / 09期
关键词：
D O I：
10.1103/PhysRevD.77.096006
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the relativistic BCS-BEC crossover within a class of Nambu-Jona-Lasinio type models, including arbitrary Lorentz-scalar pairing channels. Using the mean-field approximation we investigate spectral properties of the collective bosonic excitations in the superfluid phase, with particular attention to the Nambu-Goldstone bosons of the broken symmetry. This is a first step towards a systematic improvement of the mean-field approximation by including the fluctuation effects. The general results are illustrated on pairing in dense two-flavor quark matter-the two-flavor color superconductor.
引用
收藏
页数：11
相关论文
共 50 条
  • [11] BCS-BEC crossover in nuclear matter with the relativistic Hartree-Bogoliubov theory
    Sun, Ting Ting
    Sun, Bao Yuan
    Meng, Jie
    PHYSICAL REVIEW C, 2012, 86 (01):
  • [12] Collective Excitations of Trapped Superfluid Fermi Gases in a BCS-BEC Crossover with Arbitrary Atom Numbers
    Wang, Cheng-tao
    Ma, C. R.
    Ma, Yong-li
    JOURNAL OF LOW TEMPERATURE PHYSICS, 2009, 154 (3-4) : 85 - 96
  • [13] Collective Excitations of Trapped Superfluid Fermi Gases in a BCS-BEC Crossover with Arbitrary Atom Numbers
    Cheng-tao Wang
    C. R. Ma
    Yong-li Ma
    Journal of Low Temperature Physics, 2009, 154 : 85 - 96
  • [14] BCS-BEC Crossover Effects and Pseudogap in Neutron Matter
    Durel, David
    Urban, Michael
    UNIVERSE, 2020, 6 (11)
  • [15] Thermodynamics of the BCS-BEC crossover
    Haussmann, R.
    Rantner, W.
    Cerrito, S.
    Zwerger, W.
    PHYSICAL REVIEW A, 2007, 75 (02):
  • [16] Collective mode across the BCS-BEC crossover in Holstein model
    Park, Tae-Ho
    Choi, Han-Yong
    PHYSICAL REVIEW RESEARCH, 2024, 6 (04):
  • [17] Relativistic BCS-BEC crossover in a boson-fermion model
    Deng, Jian
    Schmitt, Andreas
    Wang, Qun
    PHYSICAL REVIEW D, 2007, 76 (03):
  • [18] Exact BCS solution in the BCS-BEC crossover
    Dukelsky, J.
    Ortiz, G.
    Rombouts, S. M. A.
    RECENT PROGRESS IN MANY-BODY THEORIES, PROCEEDINGS, 2006, 10 : 218 - +
  • [19] Exact BCS solution in the BCS-BEC crossover
    Dukelsky, J.
    Ortiz, G.
    Rombouts, S. M. A.
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2006, 20 (30-31): : 5179 - 5188
  • [20] BCS-BEC crossover and phase structure of relativistic systems: A variational approach
    Chatterjee, Bhaswar
    Mishra, Hiranmaya
    Mishra, Amruta
    PHYSICAL REVIEW D, 2009, 79 (01):
12345