Relativistic BCS-BEC crossover at finite temperature and its application to color superconductivity
Lianyi He, Pengfei Zhuang
DOI 10.1103/PhysRevD.76.056003 · Physical Review D
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The nonrelativistic G0G formalism of BCS-BEC crossover at finite temperature is extended to relativistic fermion systems. The uncondensed pairs contribute a pseudogap to the fermion excitations. The theory recovers the BCS mean field approximation at zero temperature and the nonrelativistic results in a proper limit. For massive fermions, when the coupling strength increases, there exist two crossovers from the weak coupling BCS superfluid to the nonrelativistic BEC state and then to the relativistic BEC state. For color superconductivity at moderate baryon density, the matter is in the BCS-BEC crossover region, and the behavior of the pseudogap is quite similar to that found in high temperature superconductors.
Similar papers
Relativistic BCS-BEC Crossover at Zero Temperature
similarity 0.91Lianyi He & Pengfei Zhuang · 2007 · arXiv:hep-ph/0703042
Source status unknown — claims are unverified
BCS and generalized BCS superconductivity in relativistic quantum field theory. II. Numerical calculations
similarity 0.90Tadafumi Ohsaku
Source status unknown — claims are unverified
BCS and Generalized BCS Superconductivity in Relativistic Quantum Field Theory. II. Numerical Calculations
similarity 0.89Tadafumi Ohsaku · 2002 · arXiv:cond-mat/0201292
Source status unknown — claims are unverified
Microscopic theory of pseudogap phenomena and unconventional Bose-liquid superconductivity and superfluidity in high- cuprates and other systems
similarity 0.89Dzhumanov, S. · 2020 · arXiv:1912.12407
Source status unknown — claims are unverified
Superfluid stability in BEC-BCS crossover
similarity 0.89C. -H. Pao et al. · 2005 · arXiv:cond-mat/0506437
Source status unknown — claims are unverified
Generalization of BCS theory to short coherence length superconductors: A BCS--Bose-Einstein crossover scenario
similarity 0.89Qijin Chen · 2018 · arXiv:1801.06266
Source status unknown — claims are unverified