Phase states for a three-level atom interacting with quantum fields

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dc.creatorKlimov, A. B.
dc.creatorSanchez-Soto, L. L.
dc.creatorDelgado, J.
dc.creatorYustas, E. C.
dc.date2002-12-02
dc.date.accessioned2026-07-07T06:05:39Z
dc.date.available2026-07-07T06:05:39Z
dc.descriptionWe 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.
dc.description11 pages, 4 figures, submitted for publication to Phys. Rev. A
dc.identifierhttps://arxiv.org/abs/quant-ph/0212012
dc.identifierhttp://arxiv.org/abs/quant-ph/0212012
dc.identifierPhys.Rev. A67 (2003) 013803
dc.identifierdoi:10.1103/PhysRevA.67.013803
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/90704
dc.subjectQuantum Physics
dc.titlePhase states for a three-level atom interacting with quantum fields
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