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arXiv 1507.00799hep-thquant-ph
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费米子环境中的气泡壁卡西米尔相互作用

Bubble-wall Casimir interaction in fermionic environments

Antonino Flachi, Lee-Peng Teo

摘要:

我们认为卡西米尔相互作用,介导的无质量费米子,一个球形的缺陷和一个平坦的势垒之间,假设硬(袋型)边界条件的障碍和表面的球。量子相互作用能的计算是使用多重散射方法进行的,这里适用于所讨论的设置。我们找到一个精确的积分公式的能量,从中我们提取的大,短距离的渐近行为。在大的距离的费米贡献被发现的规模为$L^{-3}$,在相反的电磁真空波动,假设完美的导电边界,规模为$L^{-4}$。在短距离下,我们计算了主导和次主导对真空能量的贡献。前导项与从接近力近似中预期的一致,而子前导项与电磁情况相反,对接近力结果进行正校正。

英文摘要:

We consider the Casimir interaction, mediated by massless fermions, between a spherical defect and a flat potential barrier, assuming hard (bag-type) boundary conditions at both the barrier and the surface of the sphere. The computation of the quantum interaction energy is carried out using the multiple scattering approach, adapted here to the setup in question. We find an exact integral formula for the energy, from which we extract both the large and short distance asymptotic behaviour. At large distance the fermionic contribution is found to scale as $L^{-3}$, in contrast to that of electromagnetic vacuum fluctuations that, assuming perfectly conducting boundaries, scales as $L^{-4}$. At short distance, we compute the leading and sub-leading contribution to the vacuum energy. The leading one coincides with what it is expected from the proximity force approximation, while the sub-leading term gives, contrary to the electromagnetic case, a positive correction to the proximity force result.

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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