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Five-level atom; squeezing; collapse revivals

In this paper, the model describing a double $\Lambda$ five-level atom interacting with a single mode electromagnetic cavity field in the (off) non-resonate case is studied. We obtained the constants of motion for the considered model. Also, the state vector of the wave function is given by using the Schrödinger equation when the atom is initially prepared in its excited state. The dynamical evolutions for the collapse revivals, the antibunching of photons and the field squeezing phenomena are investigated when the field is considered in a coherent state. The influence of detuning parameters on these phenomena is investigated. We noticed that the atom–field properties are influenced by changing the detuning parameters. The investigation of these aspects by numerical simulations is carried out using the Quantum Toolbox in Python (QuTip).

N H ABDEL-WAHAB¹ AHMED SALAH²

1. Mathematics Department, Faculty of Science, Minia University, Minia, Egypt
2. Mathematics and Theoretical Physics Department, Nuclear Research Center, Atomic Energy Authority, Cairo 13759, Egypt

Published

10 December 2017

Manuscript received

14 March 2017

Manuscript revised

27 July 2017

Accepted

1 August 2017

Early published

Unedited version published online

Final version published online

23 November 2017