dorsal/arxiv
View SchemaDynamic effects of electromagnetic wave on a damped two-level atom
| Authors | Z. Y. Zeng, G. J. Zeng, L. M. Kuang, L. D. Zhang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0301166 |
| URL | https://arxiv.org/abs/quant-ph/0301166 |
| DOI | 10.1016/S0375-9601(99)00610-6 |
| Journal | phys. lett. A 261 316-326 (1999) |
Abstract
We studied the dynamic effects of an electromagnetic(EM) wave with circular polarization on a two-level damped atom. The results demonstrate interesting ac Stark split of energy levels of damped atom. The split levels have different energies and lifetimes, both of which depend on the interaction and the damping rate of atom. When the frequency of the EM wave is tuned to satisfy the resonance condition in the strong coupling limit, the transition probability exhibits Rabi oscillation. Momentum transfer between atom and EM wave shows similar properties as the transition probability under resonance condition. For a damped atom interacting with EM field, there exists no longer stable state. More importantly, if the angular frequency of the EM wave is tuned the same as the atomic transition frequency and its amplitude is adjusted appropriately according to the damping coefficients, we can prepare a particular 'Dressed State' of the coupled system between atom and EM field and can keep the system coherently in this 'Dressed state' for a very long time. This opens another way to prepare coherent atomic states.
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"abstract": "We studied the dynamic effects of an electromagnetic(EM) wave with circular\npolarization on a two-level damped atom. The results demonstrate interesting ac\nStark split of energy levels of damped atom. The split levels have different\nenergies and lifetimes, both of which depend on the interaction and the damping\nrate of atom. When the frequency of the EM wave is tuned to satisfy the\nresonance condition in the strong coupling limit, the transition probability\nexhibits Rabi oscillation. Momentum transfer between atom and EM wave shows\nsimilar properties as the transition probability under resonance condition. For\na damped atom interacting with EM field, there exists no longer stable state.\nMore importantly, if the angular frequency of the EM wave is tuned the same as\nthe atomic transition frequency and its amplitude is adjusted appropriately\naccording to the damping coefficients, we can prepare a particular \u0027Dressed\nState\u0027 of the coupled system between atom and EM field and can keep the system\ncoherently in this \u0027Dressed state\u0027 for a very long time. This opens another way\nto prepare coherent atomic states.",
"arxiv_id": "quant-ph/0301166",
"authors": [
"Z. Y. Zeng",
"G. J. Zeng",
"L. M. Kuang",
"L. D. Zhang"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/S0375-9601(99)00610-6",
"journal_ref": "phys. lett. A 261 316-326 (1999)",
"title": "Dynamic effects of electromagnetic wave on a damped two-level atom",
"url": "https://arxiv.org/abs/quant-ph/0301166"
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