Dark matter from dark energy in q-theory
Research output: Contribution to journal › Article › Scientific › peer-review
|Number of pages||4|
|Publication status||Published - 1 Jan 2017|
|MoE publication type||A1 Journal article-refereed|
- Karlsruhe Institute of Technology
A constant (spacetime-independent) q-field may play a crucial role for the cancellation of Planck-scale contributions to the gravitating vacuum energy density. We now show that a small spacetime-dependent perturbation of the equilibrium q-field behaves gravitationally as a pressureless perfect fluid. This makes the fluctuating part of the q-field a candidate for the inferred dark-matter component of the present universe. For a Planck-scale oscillation frequency of the q-field perturbation, the implication would be that direct searches for dark-matter particles would remain unsuccessful in the foreseeable future.