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arXiv 1701.04059gr-qc
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偏心均匀旋转观测器的Unruh效应

The Unruh Effect for Eccentric Uniformly Rotating Observers

H. Ramezani-Aval

摘要:

利用伽利略转动变换研究匀速转动观测者的Unruh效应是一种常见的方法。然而,本课题中的旋转观测者是偏心观测者,而伽利略旋转变换仅对中心旋转观测者有效。因此,应用伽利略转动变换研究Unruh效应的结果的可靠性可能是值得怀疑的。在这项工作中的旋转模拟的Unruh效应的调查,通过采用两个相对论性的旋转变换对应的偏心旋转的观察者,它表明,在这两种情况下,检测器的响应函数是非零的。本文还指出,虽然连续的洛伦兹变换不能给出正则构造的框架,但如果采用修正的Franklin变换,正则方法中粒子数算符的期望值将为零。这些结论加强了这样一个主张,即通过正则场论定义的真空态和探测器之间的对应关系对于旋转的观察者是被破坏的。对已有的一些结论进行了评述,并对一些争议进行了讨论.

英文摘要:

It is common to use Galilean rotational transformation to investigate the Unruh effect for uniformly rotating observers. However, the rotating observer in this subject is an eccentric observer while Galilean rotational transformation is only valid for centrally rotating observers. Thus, the reliability of the results of applying Galilean rotational transformation to the study of the Unruh effect might be considered as questionable. In this work the rotational analog of the Unruh effect is investigated by employing two relativistic rotational transformations corresponding to the eccentric rotating observer, and it is shown that in both cases the detector response function is non-zero. It is also shown that although consecutive Lorentz transformations can not give a frame within which the canonical construction can be carried out, the expectation value of particle number operator in canonical approach will be zero if we use modified Franklin transformation. These conclusions reinforce the claim that correspondence between vacuum states defined via canonical field theory and a detector is broken for rotating observers. Some previous conclusions are commented on and some controversies are also discussed.

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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