International Journal of Theoretical Physics

, Volume 43, Issue 1, pp 141–149 | Cite as

Tachyonic Dark Matter

  • P. C. W. Davies


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.

tachyons cosmological models dark matter 


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Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  • P. C. W. Davies
    • 1
  1. 1.Australian Center for AstrobiologyMacquarie University, NewAustralia

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