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General Relativity and Quantum Cosmology

Title: The extended Einstein-Maxwell-aether-axion model: Exact solutions for axionically controlled pp-wave aether modes

Abstract: The extended Einstein-Maxwell-aether-axion model describes internal interactions inside the system, which contains gravitational, electromagnetic fields, the dynamic unit vector field describing the velocity of an aether, and the pseudoscalar field associated with the axionic dark matter. The specific feature of this model is that the axion field controls the dynamics of the aether through the guiding functions incorporated into the Jacobson's constitutive tensor. Depending on the state of the axion field these guiding functions can control and switch on or switch off the influence of acceleration, shear, vorticity and expansion of the aether flow on the state of physical system as a whole. We obtain new exact solutions, which possess the pp-wave symmetry, and indicate them by the term pp-wave aether modes in contrast to the pure pp-waves, which can not propagate in this field conglomerate. These exact solutions describe a specific dynamic state of the pseudoscalar field, which corresponds to one of the minima of the axion potential, and switches off the influence of shear and expansion of the aether flow; the model does not impose restrictions on the Jacobson's coupling constants and on the axion mass. Properties of these new exact solutions are discussed.
Comments: 8 pages, 0 figures. Replaced by the revised version published in Modern Physics Letters A; Introduction is extended, Remark, additional explanations and references are added
Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Astrophysical Phenomena (astro-ph.HE); High Energy Physics - Theory (hep-th)
Journal reference: Modern Physics Letters A, 33 (2018), 1850050
DOI: 10.1142/S0217732318500505
Cite as: arXiv:1708.00204 [gr-qc]
  (or arXiv:1708.00204v2 [gr-qc] for this version)

Submission history

From: Alexander B. Balakin [view email]
[v1] Tue, 1 Aug 2017 08:47:33 GMT (12kb)
[v2] Sat, 17 Mar 2018 11:49:23 GMT (13kb)