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arXiv 2305.18521gr-qcastro-ph.HEhep-phhep-th
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引力粒子对产生与黑洞蒸发

Gravitational Pair Production and Black Hole Evaporation

Michael F. Wondrak, Walter D. van Suijlekom, Heino Falcke

AI总结:

本研究借鉴 Schwinger 效应的热核方法,将 Schwarzschild 时空曲率解释为引力粒子对产生源,给出径向辐射分布并发现其与 Hawking 辐射量级相近,且无需显式依赖事件视界。

摘要:

我们利用一种类似于 Schwinger 效应所采用的热核方法,提出了研究黑洞蒸发的一条新途径。将该方法应用于 Schwarzschild 时空中的无电荷无质量标量场,我们证明时空曲率扮演着与 Schwinger 效应中电场强度相似的角色。我们将结果解释为引力场中的局域粒子对产生,并导出了径向产生分布。所得辐射在不稳定光子轨道附近达到峰值。将粒子数和能流与 Hawking 情形比较,我们发现两种效应处于相近数量级。然而,我们的粒子对产生机制本身并未显式利用黑洞事件视界的存在。

英文摘要:

We present a new avenue to black hole evaporation using a heat-kernel approach analogous as for the Schwinger effect. Applying this method to an uncharged massless scalar field in a Schwarzschild spacetime, we show that spacetime curvature takes a similar role as the electric field strength in the Schwinger effect. We interpret our results as local pair production in a gravitational field and derive a radial production profile. The resulting emission peaks near the unstable photon orbit. Comparing the particle number and energy flux to the Hawking case, we find both effects to be of similar order. However, our pair production mechanism itself does not explicitly make use of the presence of a black hole event horizon.

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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