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- W2950561531 abstract "A comparative analysis of a model of complex scalar field $phi$ and real scalar field $chi$ with interaction $gphi^*phichi$ for the real and purely imaginary values of coupling $g$ in perturbative and non-perturbative regions. In contrast to the usual Hermitian version (real $g$), which is asymptotically free and energetically unstable, the non-Hermitian $PT$--symmetric theory (imaginary $g$) is energetically stable and not asymptotically free. The non-perturbative approach based on Schwinger--Dyson equations reveals new interesting feature of the non-Hermitian model. While in the Hermitian version of theory the phion propagator has the non-physical non-isolated singularity in the Euclidean region of momenta, the non-Hermitian theory substantially free of this drawback, as the singulatity moves in the pseudo-Euclidean region." @default.
- W2950561531 created "2019-06-27" @default.
- W2950561531 creator A5004897965 @default.
- W2950561531 date "2015-12-10" @default.
- W2950561531 modified "2023-09-27" @default.
- W2950561531 title "Hermitian vs PT-Symmetric Scalar Yukawa Model" @default.
- W2950561531 doi "https://doi.org/10.48550/arxiv.1512.03286" @default.
- W2950561531 hasPublicationYear "2015" @default.
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