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arXiv 1409.6044gr-qchep-th
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一般时空边缘俘获面的粒子产生

Particle production from marginally trapped surfaces of general spacetimes

José M. M. Senovilla, Ramón Torres

摘要:

我们提供了一个一般的形式主义,可以分析在任意时空的隧穿现象。我们表明,通过隧道一般边际捕获表面产生的粒子通量可能会被一些特权观察员。我们讨论了这种粒子的看法可以与霍金/Unruh辐射在特定情况下。我们的方法自然会导致一个表达式的有效表面重力的边际捕获表面。该程序适用于一般的天体物理和宇宙动力学情况。提供了一些已知和新的情况下的实际例子。

英文摘要:

We provide a general formalism that allows to analyze the phenomenon of tunneling in arbitrary spacetimes. We show that a flux of particles produced by tunneling through general marginally trapped surfaces may be perceived by some privileged observers. We discuss how this particle perception can be related to Hawking/Unruh radiation in specific cases. Our approach naturally leads to an expression for the effective surface gravity of marginally trapped surfaces. The procedure is applicable to general astrophysical and cosmological dynamical situations. Some practical examples for known and new cases are provided.

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