By Wen-Yuan Ai and others

We study the renormalisation of the non-Hermitian *\mathcal{P}\mathcal{T}*-symmetric scalar field theory with the interaction *\phi^2(i\phi)^\varepsilon* using the Wilsonian approach and without any expansion in *\varepsilon*. Specifically, we solve the Wetterich equation in the local potential approximation, both in the ultraviolet regime and with the loop expansion. We calculate the scale-dependent... Show more

January 13, 2023

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Wilsonian approach to the interaction $φ^2(iφ)^\varepsilon$

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