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- W1516187848 abstract "A detailed study of a PT-symmetric zero-dimensional quartic theory is presented and a comparison between the properties of this theory and those of a conventional quartic theory is given. It is shown that the PT-symmetric quartic theory evades the consequences of the Mermin-Wagner-Coleman theorem regarding the absence of symmetry breaking in d<2 dimensions. Furthermore, the PT-symmetric theory does not satisfy the usual Bogoliubov limit for the construction of the Green's functions because one obtains different results for the $hto0^-$ and the $hto0^+$ limits." @default.
- W1516187848 created "2016-06-24" @default.
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- W1516187848 date "2015-01-02" @default.
- W1516187848 modified "2023-09-26" @default.
- W1516187848 title "PT-symmetric $varphi^4$ theory in d=0 dimensions" @default.
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- W1516187848 hasPublicationYear "2015" @default.
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