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Dynamics of an M-level atom interacting with gravity fields. 1: Effects of the level number on quantum collapse and revival

Xiao-shen Li, D. L. Lin, Thomas F. George, Fuli Li

Published Apr 1, 1989• 0 citations
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Related papers

A model of quantum collapse induced by gravity

Franck Laloë

arXiv:1905.12047•The European Physical Journal D•Feb 1, 2020•6 citations

Photon dynamics of an N-level atomic system interacting with a radiation field in the thermocoherent state

Minos A. Neto, José Antonio Roversi, M. P. Sharma

Photon dynamics of a radiation field, prepared in the thermocoherent state and interacting with an N-level atomic system, are studied theoretically. It is observed that the phenomenon of collapse and revival has strong dependence on the number of levels the atom has. It is also observed that the collapse and revival phenomenon is very sensitive to the initial number of photons present in the system, to the coupling constants, and to the detuning.

Annual Meeting Optical Society of America•Jan 1, 1992•0 citations

Interaction and entanglement of non-classical electromagnetic fields with 3-level model atom

D. V. Popolitova, Olga V. Tikhonova

We investigated the dynamics of a three-level atom during the interaction with two resonant electromagnetic quantum fields and obtained an analytical solution. Effects of “collapse” and “revival” are revealed for atomic level populations and mean photon number. The atomic dynamics are compared for different initial field states. The changing in photon statistics is shown. The entanglement between atomic and field subsystem is calculated using еруSchmidt parameter.

AIP conference proceedings•Jan 1, 2020•0 citations

Collapse-revival phenomenon for different configurations of a three-level atom interacting with a field via multi-photon process and nonlinearities

A.‐S. F. Obada, Sadek Ahmed Hanoura, A. A. Eied

The European Physical Journal D•Feb 1, 2014•12 citations

Interaction of a Λ-type three-level atom with a two-mode field and a two-mode Raman-coupled model

Zhang Zhi-ming, Lin-sheng He, Zhou Shi-kang

The Hamiltonian is derived for the interaction of a Λ-type three-level atom with a two-mode quantum cavity field from the general interaction Hamiltonian between a multi-level atom and a multi-mode radiation field, and it is reduced to an effective two-mode Raman-coupled model under a large detuning condition. We propose a modified effective Hamiltonian for the two-mode Raman-coupled model, find the time-dependent state vectors, and present the validity conditions for the involved interaction Hamiltonians. It is shown that in the study of the two-mode Raman-coupled model it is not enough to retain only the usually used effective Hamiltonian, one must also take into account the ac Stark shift of the atomic levels (at least one of the levels). Finally, we study the atomic dynamics in the interaction of a Λ-type three-level atom with a two-mode quantum cavity field and in the two-mode Raman-coupled model. We find that the number of collapse-revivals, the collapse time and the revival time show new characteristics.

Acta Physica Sinica (Overseas Edition)•Feb 1, 1999•1 citation

Collapse and revival dynamics as a probe of the quantum nature of gravity? a quantum Boltzmann equation clarification

Moslem Zarei

•Jan 1, 2026•0 citations
The Hamiltonian is derived for the interaction of a Λ-type three-level atom with a two-mode quantum cavity field from the general interaction Hamiltonian between a multi-level atom and a multi-mode radiation field, and it is reduced to an effective two-mode Raman-coupled model under a large detuning condition. We propose a modified effective Hamiltonian for the two-mode Raman-coupled model, find the time-dependent state vectors, and present the validity conditions for the involved interaction Hamiltonians. It is shown that in the study of the two-mode Raman-coupled model it is not enough to retain only the usually used effective Hamiltonian, one must also take into account the ac Stark shift of the atomic levels (at least one of the levels). Finally, we study the atomic dynamics in the interaction of a Λ-type three-level atom with a two-mode quantum cavity field and in the two-mode Raman-coupled model. We find that the number of collapse-revivals, the collapse time and the revival time show new characteristics.