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arXiv 1502.01117quant-ph
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加速后原子上的摩擦力

Friction forces on atoms after acceleration

Francesco Intravaia, Vanik E. Mkrtchian, Stefan Buhmann, Stefan Scheel, Diego A. R. Dalvit, Carsten Henkel

摘要:

本文的目的是重新讨论Barton提出的量子场论公式[New J. Phys. 12(2010)113045]中原子-表面量子摩擦的计算。我们表明,耗散到场激发和相关的摩擦力的功率取决于原子是如何从最初的静止状态提升到一个配置中,它是以恒定的速度(V)平行于平面界面移动。此外,我们还指出,在单光子耗散功率和部分双光子耗散功率之间存在一种微妙的抵消作用,导致摩擦功率的前阶贡献为v^4。这些结果也被另一种计算平均辐射力的方法所证实,该方法的尺度为v^3。

英文摘要:

The aim of this paper is to revisit the calculation of atom-surface quantum friction in the quantum field theory formulation put forward by Barton [New J. Phys. 12 (2010) 113045]. We show that the power dissipated into field excitations and the associated friction force depend on how the atom is boosted from being initially at rest to a configuration in which it is moving at constant velocity (v) parallel to the planar interface. In addition, we point out that there is a subtle cancellation between the one-photon and part of the two-photon dissipating power, resulting in a leading order contribution to the frictional power which goes as v^4. These results are also confirmed by an alternative calculation of the average radiation force, which scales as v^3.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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