Nonlinear Jaynes-Cummings model for two interacting two-level atoms
| Autor: | José Récamier, O. de los Santos-Sánchez, C. González-Gutiérrez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Physics
Quantum Physics Jaynes–Cummings model Atomic system FOS: Physical sciences Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Entropy (classical thermodynamics) Nonlinear system Nonlinear medium Phase space Quantum mechanics 0103 physical sciences Physics::Atomic Physics Quantum Physics (quant-ph) 010306 general physics Excitation |
| Popis: | In this work we examine a nonlinear version of the Jaynes-Cummings model for two identical two-level atoms allowing for Ising-like and dipole-dipole interplays between them. The model is said to be nonlinear in the sense that it can incorporate both a general intensity-dependent interaction between the atomic system and the cavity field and/or the presence of a nonlinear medium inside the cavity. As an example, we consider a particular type of atom-field coupling based upon the so-called Buck-Sukumar model and a lossless Kerr-like cavity. We describe the possible effects of such features on the evolution of some quantities of current interest, such as atomic excitation, purity, concurrence, the entropy of the field and the evolution of the latter in phase space. 28 pages, 11 figures, accepted for publication in Journal of Physics B |
| Databáze: | OpenAIRE |
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