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...
| Prif Awduron: | , , |
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| Fformat: | Journal article |
| Iaith: | English |
| Cyhoeddwyd: |
2007
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