2001/12/19 by Tadafumi Ohsaku · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #cond-mat.mes-hall #cond-mat.str-el #cond-mat.supr-con #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevb.65.024512
published as Phys.Rev. B65 (2002) 024512 · 31 pages
openalex publication_date 2001/12/19 · arxiv created 2001/12/26 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate the BCS and generalized BCS theories in the relativistic quantum field theory. We select the gauge freedom as U(1), and introduce a BCS-type effective attractive interaction. After introducing the Gor'kov formalism and performing the group theoretical consideration of the mean fields, we solve the relativistic Gor'kov equation and obtain the Green's functions in analytical forms. We obtain various types of gap equations.