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- Title
Rotating coherent states in the dispersive regime of the generalized Jaynes–Cummings model.
- Authors
Firozy, M.; Sadeghi, M.; Bolorizadeh, M. A.
- Abstract
In this study, we investigate and simulate the behavior of the generalized dispersive Jaynes–Cummings model (GDJCM) by introducing two time-dependent periodic states, which we call 'rotating coherent states'. The GDJCM describes a two-level atom in a Kerr-like medium exposed to a single-mode radiation field in the regime of large detuning. This version of the Jaynes–Cummings model (JCM) is important in some practical applications of quantum mechanics. In the large detuning regime, the Hamiltonian takes a simple and effective form, allowing us to monitor the temporal evolution of the composite system. We calculate various properties of both the atom and the field, including mixtureness, linear entropy, entanglement, von Neumann entropy, and Schmidt decomposition as an analytical function of time. A suitable deformation function is employed to describe the Kerr-like medium. Furthermore, we investigate and compare the effects of two distinct non-linearity parameters on the states of the atom and field, both analytically and visually. It is shown that by selecting an appropriate non-linearity parameter, it becomes possible to generate some specific types of states for the radiation field from the defined rotating coherent states.
- Subjects
VON Neumann, John, 1903-1957; JAYNES-Cummings model; QUANTUM entropy; QUANTUM mechanics; MAGNETIC entropy
- Publication
Optical & Quantum Electronics, 2024, Vol 56, Issue 6, p1
- ISSN
0306-8919
- Publication type
Article
- DOI
10.1007/s11082-024-06707-x