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Indexed by:Journal Papers

Date of Publication:2019-03-29

Journal:Physical Review Letters 110, 163605 (2013)

Included Journals:SCI

Discipline:Natural Science

First-Level Discipline:Physics

Abstract:We introduce and study the properties of an array of QED cavities coupled by nonlinear elements, in the presence of photon leakage and driven by a coherent source. The nonlinear couplings lead to photon hopping and to nearest-neighbor Kerr terms. By tuning the system parameters, the steady state of the array can exhibit a photon crystal associated with a periodic modulation of the photon blockade. In some cases, the crystalline ordering may coexist with phase synchronization. The class of cavity arrays we consider can be built with superconducting circuits of existing technology.