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arXiv 0705.2070gr-qchep-thquant-ph
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视界纠缠熵的幂律修正

Power-law corrections to entanglement entropy of horizons

Saurya Das, S. Shankaranarayanan, Sourav Sur

摘要:

我们重新审视了黑洞熵的起源可能在于视界内外量子场纠缠的观点。由于黑洞背景中引力涨落的某些模式表现为标量场,我们通过跟踪球内自由度来计算这种场的纠缠熵。我们表明,虽然这个熵是成比例的领域时,在其基态的面积,校正项成比例的分数功率的面积结果时,字段是在地面和激发态的叠加。因此,面积定律在大面积上得以恢复。此外,我们确定的自由度,引起上述熵的位置。

英文摘要:

We re-examine the idea that the origin of black-hole entropy may lie in the entanglement of quantum fields between inside and outside of the horizon. Motivated by the observation that certain modes of gravitational fluctuations in a black-hole background behave as scalar fields, we compute the entanglement entropy of such a field, by tracing over its degrees of freedom inside a sphere. We show that while this entropy is proportional to the area of the sphere when the field is in its ground state, a correction term proportional to a fractional power of area results when the field is in a superposition of ground and excited states. The area law is thus recovered for large areas. Further, we identify location of the degrees of freedom that give rise to the above entropy.

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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