Congruence of Dirac operators with applications to generalized MIT bag models

Joaquim Duran; Konstantin Pankrashkin

Congruence of Dirac operators with applications to generalized MIT bag models

Mathematical Physics 2026-07-29 v1 Spectral Theory

Authors: Joaquim Duran , Konstantin Pankrashkin

Abstract

We highlight a simple congruence transform that shifts coupling parameters for Dirac operators with shell interactions. As one of the consequences, this leads to new observations concerning the self-adjointness and the infinite mass interpretation of generalized MIT bag models.

Keywords

Dirac operator congruence transform shell interaction MIT bag model self-adjointness infinite mass

Cite

@article{arxiv.2607.26675,
  title  = {Congruence of Dirac operators with applications to generalized MIT bag models},
  author = {Joaquim Duran and Konstantin Pankrashkin},
  journal= {arXiv preprint arXiv:2607.26675},
  year   = {2026}
}

Comments

8 pages