Vacuum Polarization Energy for General Backgrounds in One Space Dimension

Abstract

For field theories in one time and one space dimensions we propose an efficient method to compute the vacuum polarization energy of static field configurations that do not allow a decomposition into symmetric and anti--symmetric channels. The method also applies to scenarios in which the masses of the quantum fluctuations at positive and negative spatial infinity are different. As an example we compute the vacuum polarization energy of the kink soliton in the ${\varphi }^6$ model. We link the dependence of this energy on the position of the soliton to the different masses.

arXiv commentEight pages, corrections from proof-reading implemented

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