Fano resonances control and slow light with Bose-Einstein Condensate in a nano cavity

Muhammad Javed Akram, Fazal Ghafoor, M. Miskeen Khan, Farhan Saif

Published Dec 22, 2015• 0 citations

Abstract

In this study, a standing wave in an optical nano cavity with Bose-Einstein Condensate (BEC) constitutes one dimensional optical lattice potential in the presence of finite two bodies atomic interaction. We report that interaction of a BEC with standing field in an optical cavity coherently evolve to exhibit Fano resonances in the output field at probe frequency. The behavior of the reported resonance shows an excellent compatibility with the original formulation of asymmetric resonance as discovered by Ugo Fano. Based on our analytical and numerical results, we find that the Fano resonances and subsequently electromagnetically induced transparency of the probe pulse can be controlled through the intensity of the cavity standing wave field and the strength of the atom-atom interaction in the BEC. In addition, enhancement of the slow light effect by the strength of the atom-atom interaction and its robustness against the condensate fluctuations are realizable using presently available technology.

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