Enhancing acceleration radiation from ground-state atoms via cavity quantum electrodynamics
Related Experiment Video
Updated: Aug 29, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
Marlan O Scully1, Vitaly V Kocharovsky, Alexey Belyanin
1Institute for Quantum Studies and Department of Physics, Texas A&M University, Texas 77843, USA.
Abstract:
When ground-state atoms are accelerated through a high Q 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.
Related Concept Videos
Standing Waves in a Cavity
Atomic Nuclei: Nuclear Relaxation Processes
Generating Electromagnetic Radiations
Electromagnetic Waves in Matter
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the medium, μ.
Furthermore, the...
The de Broglie Wavelength
The Quantum-Mechanical Model of an Atom

