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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 14 — Jul. 5, 2010
  • pp: 14586–14597

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

Soi-Chan Lei, Tai-Kai Ng, and Ray-Kuang Lee  »View Author Affiliations

Optics Express, Vol. 18, Issue 14, pp. 14586-14597 (2010)

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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 a coherent photon field 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. i.e., the crossovers between two superfluid states. The dynamics of the proposed two species model provides a promising quantum simulator for possible quantum information processes.

© 2010 Optical Society of America

OCIS Codes
(020.5580) Atomic and molecular physics : Quantum electrodynamics
(270.0270) Quantum optics : Quantum optics
(270.1670) Quantum optics : Coherent optical effects

ToC Category:
Quantum Optics

Original Manuscript: April 14, 2010
Revised Manuscript: June 6, 2010
Manuscript Accepted: June 18, 2010
Published: June 23, 2010

Soi-Chan Lei, Tai-Kai Ng, and Ray-Kuang Lee, "Photonic analogue of Josephson effect in a dual-species optical-lattice cavity," Opt. Express 18, 14586-14597 (2010)

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