dorsal/arxiv
View SchemaQuantum coherence and population trapping in three-photon processes
| Authors | Caroline Champenois, Giovanna Morigi, Juergen Eschner |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0607218 |
| URL | https://arxiv.org/abs/quant-ph/0607218 |
| DOI | 10.1103/PhysRevA.74.053404 |
| Journal | Physical Review A 74 (2006) 053404 |
Abstract
The spectroscopic properties of a single, tightly trapped atom are studied, when the electronic levels are coupled by three laser fields in an $N$-shaped configuration of levels, whereby a $\Lambda$-type level system is weakly coupled to a metastable state. We show that depending on the laser frequencies the response can be tuned from coherent population trapping at two-photon resonance to novel behaviour at three photon resonance, where the metastable state can get almost unit occupation in a wide range of parameters. For certain parameter regimes the system switches spontaneously between dissipative and coherent dynamics over long time scales.
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"abstract": "The spectroscopic properties of a single, tightly trapped atom are studied,\nwhen the electronic levels are coupled by three laser fields in an $N$-shaped\nconfiguration of levels, whereby a $\\Lambda$-type level system is weakly\ncoupled to a metastable state. We show that depending on the laser frequencies\nthe response can be tuned from coherent population trapping at two-photon\nresonance to novel behaviour at three photon resonance, where the metastable\nstate can get almost unit occupation in a wide range of parameters. For certain\nparameter regimes the system switches spontaneously between dissipative and\ncoherent dynamics over long time scales.",
"arxiv_id": "quant-ph/0607218",
"authors": [
"Caroline Champenois",
"Giovanna Morigi",
"Juergen Eschner"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.74.053404",
"journal_ref": "Physical Review A 74 (2006) 053404",
"title": "Quantum coherence and population trapping in three-photon processes",
"url": "https://arxiv.org/abs/quant-ph/0607218"
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