arXiv:1811.05609 · Physical Review A

Non-Markovian transient Casimir-Polder force and population dynamics on excited- and ground-state atoms: Weak- and strong-coupling regimes in generally nonreciprocal environments

George W. Hanson, S. Ali Hassani Gangaraj, Mário G. Silveirinha, Mauro Antezza, Francesco Monticone

Published Apr 18, 2019• 4 citations

Abstract

The transient Casimir-Polder force on a two-level atom introduced into a three-dimensional, inhomogeneous, generally nonreciprocal environment is evaluated using non-Markovian Weisskopf-Wigner theory in the strong- and weak-coupling regimes. Ground-state and excited atoms are shown to decouple into two separate initial-value problems, and both the short-time and long-time atomic population and force are evaluated. The results are compared with various Markov approximations of the Weisskopf-Wigner theory and with previous Markov results from the Heisenberg picture.

DOI: 10.1103/physreva.99.042508

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