Stability of Superfluid and Supersolid Phases of Dipolar Bosons in Optical Lattices

Journal Article · Fri Nov 27 04:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.225301· OSTI ID:21370872

Danshita, Ippei ^[1]

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1. Department of Physics, Waseda University, Shinjuku-ku, Tokyo 169-8555 (Japan)

We perform a stability analysis of superfluid (SF) and supersolid (SS) phases of polarized dipolar bosons in two-dimensional optical lattices at high filling factors and zero temperature, and obtain the phase boundaries between SF, checkerboard SS (CSS), striped SS (SSS), and collapse. We show that the phase diagram can be explored through the application of an external field and the tuning of its direction with respect to the optical lattice plane. In particular, we find a transition between the CSS and SSS phases.

• OSTI ID: 21370872
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 22 Vol. 103; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSONS
DIAGRAMS
INFORMATION
PHASE DIAGRAMS
STABILITY
SUPERFLUIDITY
TWO-DIMENSIONAL CALCULATIONS