• Corpus ID: 246430909

Nambu-Goldstone Modes for Superconducting Lattice Fermions

  title={Nambu-Goldstone Modes for Superconducting Lattice Fermions},
  author={Tohru Koma},
  • T. Koma
  • Published 31 January 2022
  • Physics
: We present a lattice model for superconducting fermions whose nearest-neighbour two-body interactions are a Bardeen-Cooper-Schrieffer-type pairing on the hypercubic lattice Z d with the dimension d ≥ 3. Although these effective interactions between two electrons are believed to be caused by electron-phonon interactions, we assume that the interactions between two electrons are of short range without phonons. For the model, we prove the existence of the long-range order of the superconductivity… 
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