Entangled and disentangled evolution for a single atom in a driven cavity.
For an atom in an externally driven cavity, we show that special initial states lead to near-disentangled atom-field evolution, and superpositions of these can lead to near maximally entangled states. Somewhat counterintutively, we find that (moderate) spontaneous emission in this system actually leads to a transient increase in entanglement beyond the steady-state value. We also show that a particular field correlation function could be used, in an experimental setting, to track the time evolution of this entanglement.
Gea-Banacloche
J
J
Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA.
Burt
T C
TC
Rice
P R
PR
Orozco
L A
LA