1998/11/14 by H. Mitter, Mitter, H., D. Robaschik +1
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/9811034
Talk at the conference "Quantum Field Theory under the Influence of External Conditions " Leipzig, 14.-18.9.1998, submitted to the conference proceedings
arxiv created 1998/11/14 · arxiv updated 2009/12/01
We study the Casimir effect with different temperatures between the plates (T) resp. outside of them (T'). If we consider the inner system as the black body radiation for a special geometry, then contrary to common belief the temperature approaches a constant value for vanishing volume during isentropic processes. This means: the reduction of the degrees of freedom can not be compensated by a concentration of the energy during an adiabatic contraction of the two-plate system. Looking at the Casimir pressure, we find one unstable equilibrium point for isothermal processes with T > T'. For isentropic processes there is additionally one stable equilibrium point for larger values of the distances between the two plates.