Casimir-Lifshitz force out of thermal equilibrium and asymptotic nonadditivity
Casimir-Lifshitz force out of thermal equilibrium and asymptotic nonadditivity
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DOI：
10.1103/physrevlett.97.223203
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发表时间：
2006-12-01
影响因子：
8.6
通讯作者：
Svetovoy, Vitaly B.
中科院分区：
文献类型：
--
作者：
Antezza, Mauro;Pitaevskii, Lev P.;Svetovoy, Vitaly B.
我们研究了两个不同温度的平行平板之间的作用力。作为极限情况，该力再现了著名的Casimir-Lifshitz表面-表面热平衡力和最近由M. Antezza等人，物理学评论快报95，113202（2005）。在大距离的力的渐近行为明确讨论。特别是当两个物体中的一个是稀薄气体时，力不是相加的，与密度的平方根成正比。非平凡的交叉区域在大的距离也确定。
We investigate the force acting between two parallel plates held at different temperatures. The force reproduces, as limiting cases, the well-known Casimir-Lifshitz surface-surface force at thermal equilibrium and the surface-atom force out of thermal equilibrium recently derived by M. Antezza et al., Phys. Rev. Lett. 95, 113202 (2005). The asymptotic behavior of the force at large distances is explicitly discussed. In particular when one of the two bodies is a rarefied gas the force is not additive, being proportional to the square root of the density. Nontrivial crossover regions at large distances are also identified.