Breakdown of the few-level approximation in dipole-dipole interacting systems

The validity of the few-level approximation is investigated in a system of two dipole-dipole interacting four-level atoms. Each atom is modelled by two complete sets of angular momentum multiplets. We provide two independent arguments demonstrating that the few-level approximation in general leads t...

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Hlavní autoři: Kiffner, M, Evers, J, Keitel, C
Médium: Journal article
Jazyk:English
Vydáno: 2007