By Wen-Yuan Ai and others

The scalar field theory with potential *V(\varphi)=\textstyle{\frac{1}{2}} m^2\varphi^2-\textstyle{\frac{1}{4}} g\varphi^4* (*g>0*) is ill-defined as a Hermitian theory but in a non-Hermitian *\mathcal{P}\mathcal{T}*-symmetric framework it is well-defined, and it has a positive real energy spectrum for the case of spacetime dimension *D=1*. While the methods used in the literature do not easily... Show more

September 25, 2022

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$\mathcal{P}\mathcal{T}$-symmetric $-g\varphi^4$ theory

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