dorsal/arxiv
View SchemaNonperturbative Coherent Population Trapping: An Analytic Model
| Authors | V. Delgado, J. M. Gomez Llorente |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0306164 |
| URL | https://arxiv.org/abs/quant-ph/0306164 |
| DOI | 10.1103/PhysRevLett.88.053603 |
| Journal | Phys. Rev. Lett. 88, 053603 (2002) |
Abstract
Coherent population trapping is shown to occur in a driven symmetric double-well potential in the strong-field regime. The system parameters have been chosen to reproduce the $0^{-}\leftrightarrow 3^{+}$ transition of the inversion mode of the ammonia molecule. For a molecule initially prepared in its lower doublet we find that, under certain circumstances, the $3^{+}$ level remains unpopulated, and this occurs in spite of the fact that the laser field is resonant with the $0^{-}\leftrightarrow 3^{+}$ transition and intense enough so as to strongly mix the $0^{+}$ and $0^{-}$ ground states. This counterintuitive result constitutes a coherent population trapping phenomenon of nonperturbative origin which cannot be accounted for with the usual models. We propose an analytic nonperturbative model which accounts correctly for the observed phenomenon.
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"abstract": "Coherent population trapping is shown to occur in a driven symmetric\ndouble-well potential in the strong-field regime. The system parameters have\nbeen chosen to reproduce the $0^{-}\\leftrightarrow 3^{+}$ transition of the\ninversion mode of the ammonia molecule. For a molecule initially prepared in\nits lower doublet we find that, under certain circumstances, the $3^{+}$ level\nremains unpopulated, and this occurs in spite of the fact that the laser field\nis resonant with the $0^{-}\\leftrightarrow 3^{+}$ transition and intense enough\nso as to strongly mix the $0^{+}$ and $0^{-}$ ground states. This\ncounterintuitive result constitutes a coherent population trapping phenomenon\nof nonperturbative origin which cannot be accounted for with the usual models.\nWe propose an analytic nonperturbative model which accounts correctly for the\nobserved phenomenon.",
"arxiv_id": "quant-ph/0306164",
"authors": [
"V. Delgado",
"J. M. Gomez Llorente"
],
"categories": [
"quant-ph",
"cond-mat.other",
"physics.chem-ph"
],
"doi": "10.1103/PhysRevLett.88.053603",
"journal_ref": "Phys. Rev. Lett. 88, 053603 (2002)",
"title": "Nonperturbative Coherent Population Trapping: An Analytic Model",
"url": "https://arxiv.org/abs/quant-ph/0306164"
},
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