arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.10639hep-th
收藏

量子电动力学中的辐射反应及其对Unruh效应的影响

Radiation reaction from quantum electrodynamics and its implications for the Unruh effect

Zoltán Tulipánt

摘要:

Abraham-Lorentz-Dirac理论预言了均匀加速电荷的辐射反应消失。然而,由于加速观察者应该检测到热辐射,因此应该看到电荷在加速帧中吸收光子,如果没有其他情况发生,则会影响其运动。这意味着在惯性系中可以看到辐射反应,或者在加速系中可以看到抵消吸收效应的额外现象。本文从量子电动力学的角度重新推导了Abraham-Lorentz-Dirac力,然后研究了匀加速电荷的情形。我表明,在加速帧中,除了吸收光子由于Unruh效应也应该有受激发射。这些现象对电荷运动的净影响为零。

英文摘要:

The Abraham-Lorentz-Dirac theory predicts vanishing radiation reaction for uniformly accelerated charges. However, since an accelerating observer should detect thermal radiation, the charge should be seen absorbing photons in the accelerated frame which, if nothing else occurs, would influence its motion. This means that either there is radiation reaction seen in an inertial frame or there should be an additional phenomenon seen in the accelerated frame countering the effect of absorption. In this paper I rederive the Abraham--Lorentz--Dirac force from quantum electrodynamics, then I study the case of a uniformly accelerated charge. I show that in the accelerated frame, in addition to the absorption of photons due to the Unruh effect there should also be stimulated emission. The net effect of these phenomena on the motion of the charge is found to be zero.

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。

↑