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arXiv · 1003.1547

Photonic analogue of Josephson effect in a dual-species optical-lattice cavity

Soi-Chan Lei·Tai-Kai Ng·Ray-Kuang Lee
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Abstract

We extend the idea of quantum phase transitions of light in the photonic Bose-Hubbard model with interactions to two atomic species by a self-consistent mean field theory. The excitation of two-level atoms interacting with coherent photon fields is analyzed with a finite temperature dependence of the order parameters. Four ground states of the system are found, including an isolated Mott-insulator phase and three different superfluid phases. Like two weakly coupled superconductors, our proposed dual-species lattice system shows a photonic analogue of Josephson effect. The dynamics of the proposed two species model provides a promising quantum simulator for possible quantum information processes.

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Soi-Chan Lei, Tai-Kai Ng, Ray-Kuang Lee. 2010-03-08. Photonic analogue of Josephson effect in a dual-species optical-lattice cavity. https://doi.org/10.1364/oe.18.014586

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