dorsal/arxiv
View SchemaPhase states for a three-level atom interacting with quantum fields
| Authors | A. B. Klimov, L. L. Sanchez-Soto, J. Delgado, E. C. Yustas |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0212012 |
| URL | https://arxiv.org/abs/quant-ph/0212012 |
| DOI | 10.1103/PhysRevA.67.013803 |
| Journal | Phys.Rev. A67 (2003) 013803 |
Abstract
We introduce phase operators associated with the algebra su(3), which is the appropriate tool to describe three-level systems. The rather unusual properties of this phase are caused by the small dimension of the system and are explored in detail. When a three-level atom interacts with a quantum field in a cavity, a polynomial deformation of this algebra emerges in a natural way. We also introduce a polar decomposition of the atom-field relative amplitudes that leads to a Hermitian relative-phase operator, whose eigenstates correctly describe the corresponding phase properties. We claim that this is the natural variable to deal with quantum interference effects in atom-field interactions. We find the probability distribution for this variable and study its time evolution in some special cases.
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"abstract": "We introduce phase operators associated with the algebra su(3), which is the\nappropriate tool to describe three-level systems. The rather unusual properties\nof this phase are caused by the small dimension of the system and are explored\nin detail. When a three-level atom interacts with a quantum field in a cavity,\na polynomial deformation of this algebra emerges in a natural way. We also\nintroduce a polar decomposition of the atom-field relative amplitudes that\nleads to a Hermitian relative-phase operator, whose eigenstates correctly\ndescribe the corresponding phase properties. We claim that this is the natural\nvariable to deal with quantum interference effects in atom-field interactions.\nWe find the probability distribution for this variable and study its time\nevolution in some special cases.",
"arxiv_id": "quant-ph/0212012",
"authors": [
"A. B. Klimov",
"L. L. Sanchez-Soto",
"J. Delgado",
"E. C. Yustas"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.67.013803",
"journal_ref": "Phys.Rev. A67 (2003) 013803",
"title": "Phase states for a three-level atom interacting with quantum fields",
"url": "https://arxiv.org/abs/quant-ph/0212012"
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