Chen F, Klimchitskaya G L, Mohideen U, Mostepanenko V M
Department of Physics, University of California, Riverside, California 92521, USA.
Phys Rev Lett. 2003 Apr 25;90(16):160404. doi: 10.1103/PhysRevLett.90.160404. Epub 2003 Apr 23.
The difference of the thermal Casimir forces at different temperatures between real metals is shown to increase with a decrease of the separation distance. This opens new opportunities for the demonstration of the thermal dependence of the Casimir force. Both configurations of two parallel plates and a sphere above a plate are considered. Different approaches to the theoretical description of the thermal Casimir force are shown to lead to different measurable predictions.