Bistable Mott-insulator-to-superfluid phase transition in cavity optomechanics

Journal Article · Wed Jul 15 04:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.011801· OSTI ID:21313182

Chen, W; Goldbaum, D S; Bhattacharya, M; Meystre, P ^[1]; Zhang, K ^[2]

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1. B2 Institute, Department of Physics and College of Optical Sciences, The University of Arizona, Tucson, Arizona 85721 (United States)
2. State Key Laboratory of Precision Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062 (China)

We study the many-body state of ultracold bosons in a bistable optical lattice potential in an optomechanical resonator in the weak-coupling limit. Interesting physics arises as a result of bistability and discontinuous jumps in the cavity field. Of particular interest is the situation where the optical cavity is engineered so that a single input beam can result in two radically different stable ground states for the intracavity gas: superfluid and Mott insulator. Furthermore, the system we describe can be used as an adjustable template for investigating the coupling between cavity fields, nanomechanical systems operating in the quantum regime, and ultracold atomic gases.

• OSTI ID: 21313182
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
BOSONS
COUPLING
GASES
GROUND STATES
LASERS
MANY-BODY PROBLEM
OPTICS
PHASE TRANSFORMATIONS
RESONATORS
SUPERFLUIDITY