Casimir effect in kinetic theory

被引:1
|
作者
Guo, Xingyu [1 ]
Zhao, Jiaxing [2 ]
Zhuang, Pengfei [2 ]
机构
[1] South China Normal Univ, Inst Quantum Matter, Guangdong Prov Key Lab Nucl Sci, Guangzhou 510006, Peoples R China
[2] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
来源
NEW JOURNAL OF PHYSICS | 2022年 / 24卷 / 07期
关键词
Casimir effect; quantum kinetic theory; non-equilibrium state; RADIATIVE HEAT-TRANSFER; QUANTUM TRANSPORT; FORCE;
D O I
10.1088/1367-2630/ac7b9e
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study Casimir effect in equilibrium and non-equilibrium photon gas in the frame of quantum kinetic theory for U(1) gauge field. We derive first the transport, constraint and gauge fixing equations for the photon number distribution from Maxwell's equations, and then calculate the energy variation and Casimir force for a finite system by considering boundary condition on the surface of the system. The Casimir force in vacuum is suppressed by the thermal motion of photons in equilibrium state, when considering two adiabatic plates. In non-equilibrium state, the photon induced Casimir force oscillates and decays with time and finally disappears.
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页数:9
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