Thermal Casimir effect in ideal metal rectangular boxes |
| |
Authors: | B Geyer G L Klimchitskaya V M Mostepanenko |
| |
Institution: | (1) Institute for Theoretical Physics, Leipzig University, Leipzig, Germany;(2) North-West Technical University, St. Petersburg, Russia;(3) Noncommercial Partnership “Scientific Instruments”, Moscow, Russia |
| |
Abstract: | The thermal Casimir effect in ideal metal rectangular boxes is considered using the method of zeta functional regularization.
A renormalization procedure is suggested which provides the finite expression for the Casimir free energy in any restricted
quantization volume. This expression satisfies the classical limit at high temperature and leads to zero thermal Casimir force
for systems with infinite characteristic dimensions. In the case of two parallel ideal metal planes the results, as derived
previously using thermal quantum field theory in Matsubara formulation and other methods, are reproduced starting from the
expression obtained. It is shown that for rectangular boxes the temperature-dependent contribution to the electromagnetic
Casimir force can be both positive and negative depending on side lengths. Numerical computations of the scalar and electromagnetic
Casimir free energy and force are performed for cubes. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|