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Strongly-Driven One-Atom Laser and Decoherence Monitoring

P. Lougovski·F. Casagrande·A. Lulli·E. Solano
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Abstract

We propose the implementation of a strongly-driven one-atom laser, based on the off-resonant interaction of a three-level atom in $Λ$-configuration with a single cavity mode and three laser fields. We show that the system can be described equivalently by a two-level atom resonantly coupled to the cavity and driven by a strong effective coherent field. The effective dynamics can be solved exactly, including a thermal field bath, allowing an analytical description of field statistics and entanglement properties. We also show the possible generation of Schrödinger cat states for the whole atom-field system and for the field alone after atomic measurement. We propose a way to monitor the system decoherence by measuring atomic population. Finally, we confirm the validity of our model through numerical solutions.

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P. Lougovski, F. Casagrande, A. Lulli, E. Solano. 2007-07-26. Strongly-Driven One-Atom Laser and Decoherence Monitoring. https://arxiv.org/abs/quant-ph/0702054

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