The refractive index of curved spacetime II: QED, Penrose limits and black holes

The refractive index of curved spacetime II: QED, Penrose limits and black holes
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弯曲时空的折射率 II:QED、彭罗斯极限和黑洞

DOI:
10.1088/1126-6708/2009/08/089
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发表时间:
2009
影响因子:
5.4
通讯作者:
Hollowood T
Hollowood T
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Hollowood T

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这项工作考虑的方式,量子环效应修改光在弯曲空间中的传播。本文首先回顾了标量QED折射率的计算,然后首次将其推广到圈中有旋量粒子的QED。它示出了如何,在这两种情况下,低频相速度可以大于C,最初发现由德拉蒙德和Hathrell,但因果关系是尊重在这个意义上,推迟绿色功能消失以外的光锥。一个“现象”的折射率,然后提出了黑洞,FRW宇宙和引力波。在某些情况下,一些偏振态以具有负虚部的折射率传播,这表明弯曲空间中光学定理的潜在崩溃和可能的不稳定性。
This work considers the way that quantum loop effects modify the propagation of light in curved space. The calculation of the refractive index for scalar QED is reviewed and then extended for the first time to QED with spinor particles in the loop. It is shown how, in both cases, the low frequency phase velocity can be greater than c, as found originally by Drummond and Hathrell, but causality is respected in the sense that retarded Green functions vanish outside the lightcone. A``phenomenology''of the refractive index is then presented for black holes, FRW universes and gravitational waves. In some cases, some of the polarization states propagate with a refractive index having a negative imaginary part indicating a potential breakdown of the optical theorem in curved space and possible instabilities.
弯曲时空中的因果关系和微观因果关系
DOI: 10.1016/j.physletb.2007.08.073
发表时间: 2007
期刊: Physics Letters B
影响因子: 4.4
作者:
T. Hollowood;G. Shore
通讯作者: G. Shore
球对称奇点和强大的宇宙审查制度。
DOI: 10.1103/physrevd.47.4362
发表时间: 1993
期刊: Physical review. D, Particles and fields
影响因子: --
作者:
Szekeres;Iyer
通讯作者: Iyer
DOI: 10.1088/1126-6708/2004/11/001
发表时间: 2004-10
影响因子: 5.4
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G. Veneziano
通讯作者: G. Veneziano
DOI: 10.1088/1126-6708/2008/02/049
发表时间: 2007
影响因子: 5.4
作者:
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通讯作者: G. Veneziano
DOI: 10.1080/00107510310001617106
发表时间: 2003
影响因子: 2
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