Tachyonic dark matter

Abstract

Recent attempts to explain the dark matter and energy content of the universe have involved some radical extensions of standard physics, including quintessence, phantom energy, additional space dimensions and variations in the speed of light. In this paper I consider the possibility that some dark matter might be in the form of tachyons. I show that, subject to some reasonable assumptions, a tachyonic cosmological fluid would produce distinctive effects, such as a surge in quantum vacuum energy and particle creation, and a change in the conventional temperature-time relation for the normal cosmological material. Possible observational consequences are discussed.

10 pages, no figures, research paper

References in corpus (2)

• Cosmology with tachyon field as dark energy
• Black hole versus cosmological horizon entropy

Cited by in corpus (10)

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• The standard "static" spherically symmetric ansatz with perfect fluid source revisited
• Lorentz covariant statistical mechanics and thermodynamics of the relativistic ideal gas and preferred frame
• Cosmological bounds on tachyonic neutrinos
• Relativistic ideal Fermi gas at zero temperature and preferred frame
• Perturbations in Tachyon Dark Energy and their Effect on Matter Clustering
• Fundamental scalar fields and the dark side of the universe
• Lorentzian wormholes supported by tachyon matter
• Static spherically symmetric solutions of Einstein field equations with radial dark matter
• Tachyonic models of dark matter