On the Cooper-Stacey reduction in Dicke coherence due to relative motion

11 November 1974

journal article
research article
Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics

Vol. 7 (16) , 2149-2157
https://doi.org/10.1088/0022-3700/7/16/014

Abstract

The lifetime for a pair of atoms with one quantum of excitation is calculated by conventional perturbation theory without the assumption of fixed separation between the atoms. Several cases for the initial preparation of the state of relative motion are considered. For plane wave states there is no coherence, for the state with locked-in relative displacement the usual coherence is deduced, while for a nearly classical state with minimum dispersion in both relative displacement and relative momentum the result of Cooper and Stacey (see abstr. A19687 of 1974) is confirmed. The resonance energy is shown to be unaffected by the relative motion.

Keywords

This publication has 8 references indexed in Scilit:

The role of the Doppler effect in the radiative interaction of atoms
Journal of Physics B: Atomic and Molecular Physics, 1974
Resonant Interaction between Two Neutral Atoms
Physical Review A, 1971
Effect on the Lifetime of an Atom Undergoing a Dipole Transition Due to the Presence of a Resonating Atom
The Journal of Chemical Physics, 1967
Very Long‐Range (Retardation Effect) Intermolecular Forces
Advances in Chemical Physics, 1967
On the Interaction between two identical neutral dipole systems, One in an excited state and the other in the ground state
Mathematika, 1964
First-Order Dispersion Forces
The Journal of Chemical Physics, 1964
Coulomb gauge in non-relativistic quantum electro-dynamics and the shape of spectral lines
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1959
Coherence in Spontaneous Radiation Processes
Physical Review B, 1954