On possible origin of an anisotropy in the speed of light in vacuum
arXiv:1405.1977 · doi:10.1007/s10714-016-2079-5
Abstract
We assume the spacetime foam picture in which vacuum is filled with virtual wormholes. In the presence of an external field the distribution of wormholes changes. We consider an anisotropic distribution of wormholes and analyze its relation to the speed of light. We show that speed of light acquires an anisotropic character and save the normal dispersion a gas of virtual wormholes may possess also an anomalous dispersion, i.e., when the light velocity exceeds that in the vacuum.
arXiv admin note: text overlap with arXiv:1204.0351
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