Dilatonic Couplings and the Relic Abundance of Ultralight Dark Matter
Dilatonic Couplings and the Relic Abundance of Ultralight Dark Matter
Models of scalar field dark matter where the scalar is a dilaton have a special behaviour, since non-trivial couplings, $d$, to matter result in a contribution to the potential for the field which is proportional to the trace of the stress-energy tensor. We look in more detail at the dilaton …