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arXiv 1002.1844gr-qc
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黑洞视界的量子关联

On Quantum Correlations across the Black Hole Horizon

Ralf Schützhold, William G. Unruh

摘要:

受黑洞的凝聚态类似物的启发,我们研究了事件视界上的量子关联,反映了霍金辐射的出射粒子与它们的入射粒子之间的纠缠。对于一个完美的协变理论,总的相关性在时间上是守恒的,并且在过去任意靠近视界的地方堆积起来,在那里它合并到光锥处真空两点函数的奇点中。在修改色散关系(即,打破洛伦兹不变性),另一方面,对于大的$k$,光锥被涂掉,纠缠不守恒,但实际上以每单位时间给定的速率产生。

英文摘要:

Inspired by the condensed-matter analogues of black holes, we study the quantum correlations across the event horizon reflecting the entanglement between the outgoing particles of the Hawking radiation and their in-falling partners. For a perfectly covariant theory, the total correlation is conserved in time and piles up arbitrary close to the horizon in the past, where it merges into the singularity of the vacuum two-point function at the light cone. After modifying the dispersion relation (i.e., breaking Lorentz invariance) for large $k$, on the other hand, the light cone is smeared out and the entanglement is not conserved but actually created in a given rate per unit time.

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