Eur. Phys. J. D (2015) 69: 191
https://doi.org/10.1140/epjd/e2015-60198-0

Regular Article

Non-classical effects in cavity QED containing a nonlinear optical medium and a quantum well: Entanglement and non-Gaussanity

¹ College of Science, Prince Sattam Bin Abdulaziz University, Al-Aflaj, Saudi Arabia
² Faculty of Science, Assiut University, 71516 Assiut, Republic of Egypt
³ Department of Physics, McGill University, Montreal, Canada H3A 2T8
⁴ Department of Physics, Université de Montréal, Montreal, QC, H3T 1J4, Canada

^a e-mail: abdelbastm@yahoo.com

Received: 27 March 2015
Received in final form: 14 May 2015
Published online: 4 August 2015

Abstract

Entanglement and non-Gaussianity are investigated in cavity QED containing a high optical nonlinear medium and a quantum well. It is shown that the dynamical behavior of the entanglement and the non-classicality are very sensitive to the initial state and the optical nonlinearities. By filling the cavity with the optical nonlinear medium, the non-Gaussianity as well as the light-matter entanglement is enhanced. For certain parameter sets, it is possible to control the degree and the dynamics of these quantum effects.