2021
DOI: 10.48550/arxiv.2111.05131
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PT symmetric fermionic field theories with axions: Renormalization and dynamical mass generation

N. E. Mavromatos,
Sarben Sarkar,
A. Soto

Abstract: We consider the renormalisation properties of non-Hermitian Yukawa theories involving a pseudoscalar (axion) field. More generally these models provide simple paradigms for the study of the quantum behaviour of non-Hermitian (but PT -symmetric) fermionic models as higher dimensional field theories. The flow between of PT -symmetric and Hermitian fixed points under the renormalisation group flows is examined.

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“…Now, taking into account Eqs. (9), it is possible to obtain the T transformations of some Hermitian bispinor forms. In particular,…”
Section: A Model Its Symmetries Etcmentioning
confidence: 99%
See 1 more Smart Citation
“…Now, taking into account Eqs. (9), it is possible to obtain the T transformations of some Hermitian bispinor forms. In particular,…”
Section: A Model Its Symmetries Etcmentioning
confidence: 99%
“…(Quite recently, it was noted in Ref. [9] that, perhaps, the phenomenon of spontaneous non-Hermiticity occurs also in some models of Yukawa type.) It means that (i) initial Lagrangian of the massless NJL model is taken to be Hermitian and PT -symmetric, (ii) but, as it was proved in Ref.…”
Section: Introductionmentioning
confidence: 99%