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

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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Cited by in corpus (4)

• Fractional Quantum Hall Physics in Jaynes-Cummings-Hubbard Lattices
• Nonlinear properties and stabilities of polaritonic crystals beyond the low-excitation-density limit
• Quantum phase transition of nonlinear light in the finite size Dicke Hamiltonian
• Supersolid phases of light in extended Jaynes-Cummings-Hubbard systems