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arXiv 1902.04781gr-qchep-th
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霍金效应的一个更简单正则推导的新坐标

New coordinates for a simpler canonical derivation of the Hawking effect

Golam Mortuza Hossain, Chiranjeeb Singha

摘要:

为了实现霍金效应的基于哈密顿的正则推导,人们通常面临多个障碍。首先,使用史瓦西时间的时空叶理并不导致总是类空的超曲面。其次,在协变方法中经常使用的零坐标并不导致真物质哈密顿量。最近,一个精确的正则推导提出了使用所谓的近零坐标。然而,也有一个面临的困难,必须处理非零的物质同构生成器的空间分解涉及一个非零的移位向量。在这里,我们引入了一组新的坐标,它允许人们执行一个精确的正则推导霍金效应,而不必处理物质的同构生成器。

英文摘要:

In order to achieve a Hamiltonian-based canonical derivation of the Hawking effect, one usually faces multiple hurdles. Firstly, the spacetime foliation using Schwarzschild time does not lead to hyper-surfaces which are always spacelike. Secondly, the null coordinates which are frequently used in covariant approach, do not lead to a true matter Hamiltonian. Recently, an exact canonical derivation was presented using the so-called near-null coordinates. However, there too one faces the difficulty of having to deal with non-vanishing matter diffeomorphism generator as the spatial decomposition involves a non-zero shift vector. Here we introduce a new set of coordinates which allows one to perform an exact canonical derivation of Hawking effect without having to deal with matter diffeomorphism generator.

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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