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arXiv 2103.01920hep-th
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从无力等离子体走向可穿越的虫洞

Towards traversable wormholes from force-free plasmas

Nabil Iqbal, Simon F. Ross

摘要:

磁荷黑洞的近视界区域可以有非常强的磁场。一个有用的低能量有效理论的波动的领域,耦合到带电粒子,是无力电动力学。低能集体激发包含大量的Alfven波模,它们沿场世界线具有无质量色散关系。我们试图构建可穿越的虫洞的解决方案,使用负卡西米尔能量的阿尔芬波模式,类似于最近的建设,使用带电的无质量费米子。无质量标量在近视界区域的行为意味着虫洞的大小受到严格的限制,不能变大,即使在更大的范围内,无力描述是有效的。

英文摘要:

The near-horizon region of magnetically charged black holes can have very strong magnetic fields. A useful low-energy effective theory for fluctuations of the fields, coupled to electrically charged particles, is force-free electrodynamics. The low energy collective excitations include a large number of Alfven wave modes, which have a massless dispersion relation along the field worldlines. We attempt to construct traversable wormhole solutions using the negative Casimir energy of the Alfven wave modes, analogously to the recent construction using charged massless fermions. The behaviour of massless scalars in the near-horizon region implies that the size of the wormholes is strongly restricted and cannot be made large, even though the force free description is valid in a larger regime.

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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