Vacuum Stress Tensor of a Scalar Field in a Rectangular Waveguide

R. B. Rodrigues, N. F. Svaiter, R. D. M. De Paola

Using the heat kernel method and the analytic continuation of the zeta function, we calculate the canonical and improved vacuum stress tensors, $T_{\mu \nu }(\vec{x})$ and ${Θ_{μν}(\ve…