Congruence of Dirac operators with applications to generalized MIT bag models
arXiv:2607.26675
summary
The paper introduces a simple congruence transformation that shifts coupling parameters for Dirac operators with shell interactions, and uses it to derive new results on the self‑adjointness and infinite‑mass interpretation of generalized MIT bag models.
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.
8 pages
Topics & keywords
#dirac operators#shell interactions#self-adjointness#MIT bag model#congruence transformcongruence transformcoupling parametersgeneralized MIT bag modelinfinite mass interpretationself-adjoint extensions