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arXiv · 2607.26675

Congruence of Dirac operators with applications to generalized MIT bag models

Joaquim Duran·Konstantin Pankrashkin
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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.

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Joaquim Duran, Konstantin Pankrashkin. 2026-07-29. Congruence of Dirac operators with applications to generalized MIT bag models. https://arxiv.org/abs/2607.26675

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