Abstract
When ground-state atoms are accelerated through a high microwave cavity, radiation is produced with an intensity which can exceed the intensity of Unruh acceleration radiation in free space by many orders of magnitude. The reason is a strong nonadiabatic effect at cavity boundaries and its interplay with the standard Unruh effect. The cavity field at steady state is still described by a thermal density matrix under most conditions. However, under some conditions gain is possible, and when the atoms are injected in a regular fashion, squeezed radiation can be produced.
- Received 22 May 2003
DOI:https://doi.org/10.1103/PhysRevLett.91.243004
©2003 American Physical Society