Propagating q-field and q-ball solution
Research output: Contribution to journal › Article › Scientific › peer-review
|Journal||MODERN PHYSICS LETTERS A|
|Publication status||Published - 2017|
|MoE publication type||A1 Journal article-refereed|
- Karlsruhe Institute of Technology
One possible solution of the cosmological constant problem involves a so-called q-field, which self-adjusts so as to give a vanishing gravitating vacuum energy density (cosmological constant) in equilibrium. We show that this q-field can manifest itself in other ways. Specifically, we establish a propagating mode (q-wave) in the nontrivial vacuum and find a particular soliton-type solution in flat spacetime, which we call a q-ball by analogy with the well-known Q-ball solution. Both q-waves and q-balls are expected to play a role for the equilibration of the q-field in the very early universe.
- cosmological constant, dark energy, Relativistic wave equations, solitons