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Electromagnetic dark energy. (English) Zbl 1153.85002

Summary: We introduce a new model for dark energy in the Universe in which a small cosmological constant is generated by ordinary electromagnetic vacuum energy. The corresponding virtual photons exist at all frequencies but switch from a gravitationally active phase at low frequencies to a gravitationally inactive phase at higher frequencies via a Ginzburg-Landau type of phase transition. Only virtual photons in the gravitationally active state contribute to the cosmological constant. A small vacuum energy density, consistent with astronomical observations, is naturally generated in this model. We propose possible laboratory tests for such a scenario based on phase synchronization in superconductors.

MSC:

85A40 Astrophysical cosmology
83C57 Black holes
83C47 Methods of quantum field theory in general relativity and gravitational theory
83C50 Electromagnetic fields in general relativity and gravitational theory
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