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Chinese journal of atomic and molecular physics

Generation of atoms entangled states via the time evolution of Jaynes Cummings with large detuning and detection of cavity fields

Song Ke

Published Jan 1, 1999• 0 citations
OpenAlex

Abstract

A method for generating atoms entangled states through the time evolution of Jaynes Cummings model with large detuning and detection of cavity fields is presented.

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"We present a model to generate atomic entanglement with atoms located at distant cavities. It consists of two cavities connected by an optical fiber, where each cavity interacts with a single two-level atom. For certain atom-cavity and cavity-fiber coupling parameters, we find a wide time plateau for the concurrence between the atoms. An increase of the atom-cavity detuning, gives rise to a linear increase of the width of the plateau, but at the same time, when losses are included in the model, it also decreases the value of the concurrence and increases the response time to reach the maximum."
We propose a method of generating multipartite entanglement by considering the interaction of a system of N two-level atoms in a cavity of high quality factor with a strong classical driving field. It is shown that, with a judicious choice of the cavity detuning and the applied coherent field detuning, vacuum Rabi coupling produces a large number of important multipartite entangled states. It is even possible to produce entangled states involving different cavity modes. Tuning of parameters also permits us to switch from Jaynes-Cummings to anti-Jaynes-Cummings-like interaction.