Vacuum polarization energy for general backgrounds in one space dimension
CITATION: Weigel, H. 2017. Vacuum polarization energy for general backgrounds in one space dimension. Physics Letters B, 766:65-70, doi:10.1016/j.physletb.2016.12.055.
The original publication is available at https://www.sciencedirect.com
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 ø⁶ model. We link the dependence of this energy on the position of the soliton to the different masses.