Does inflationary particle production suggest Ω<SUB>m</SUB> <1?
- Sahni, Varun
- Habib, Salman
DOIAbstract
We study a class of Friedmann-Robertson-Walker spacetimes with a nonminimally coupled light massive scalar field. Values of the coupling parameter ξ<0 enhance long range power in the vacuum expectation value of the energy-momentum tensor <T<SUB>μν</SUB>> and fundamentally alter the nature of inflationary particle production: the energy density of created particles behaves like an effective cosmological constant, leading generically to Ω<SUB>m</SUB><1 in clustered matter and providing a possible resolution of the "Ω problem" for low density cosmological models
Add to ORKG