Signatures of the superfluid-insulator phase transition in laser-driven dissipative nonlinear cavity arrays
Authors: Tomadin A., Giovannetti V., Fazio R., Gerace D., Carusotto I., Türeci H.E., Imamoglu A.
Autors Affiliation: National Enterprise for nanoScience and nanoTechnology, Consiglio Nazionale delle Ricerche, Istituto Nazionale per la Fisica della Materia, and Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126 Pisa, Italy;
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia and Dipartimento di Fisica “A. Volta,” Universita’ di Pavia, I-27100 Pavia, Italy;
Institute for Quantum Electronics, Eidgenössische Technische Hochschule Zürich, CH-8093 Zurich, Switzerland;
Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche BEC Center and Dipartimento di Fisica, Università di Trento, I-38123 Povo, Italy
Abstract: We analyze the nonequilibrium dynamics of a gas of interacting photons in an array of coupled dissipative
nonlinear cavities when driven by a pulsed external coherent field. Using a mean-field approach, we show that
the response of the system is strongly sensitive to the underlying (equilibrium) quantum phase transition from
a Mott insulator to a superfluid state at commensurate filling. We find that the coherence of the cavity emission
after a quantum quench can be used to determine the phase diagram of an optical many-body system even in the
presence of dissipation.
Journal/Review: PHYSICAL REVIEW A
Volume: 81 (6) Pages from: 061801 to: 061801
More Information: We acknowledge useful discussions with Sebastian Schmidt. This work was supported by EUIP-EuroSQIP (RF), the Swiss NSF under Grant No. PP00P2-123519/1 (HET) and an ERC Advanced Investigator Grant (AI).KeyWords: quantum-systems; polaritons; states; light; DOI: 10.1103/PhysRevA.81.061801Citations: 75data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2019-10-13References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here