Pair-Supersolid Phase in a Bilayer System of Dipolar Lattice Bosons

Journal Article · Fri Jul 17 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.035304· OSTI ID:21347065

Trefzger, C ^[1]; Menotti, C ^[2]; Lewenstein, M ^[1]

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1. ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona) (Spain)
2. CNR-INFM BEC and Dipartimento di Fisica, Universita di Trento, I-38050 Povo (Italy)

The competition between tunneling and interactions in bosonic lattice models generates a whole variety of different quantum phases. While, in the presence of a single species interacting via on site interaction, the phase diagram presents only superfluid or Mott insulating phases, for long-range interactions or multiple species, exotic phases such as supersolid or pair-superfluid appear. In this Letter, we show for the first time that the coexistence of effective multiple species and long-range interactions leads to the formation of a novel pair-supersolid phase, namely, a supersolid of composites. We propose a possible implementation with dipolar bosons in a bilayer two-dimensional optical lattice.

• OSTI ID: 21347065
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 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
DISTANCE
INFORMATION
INTERACTION RANGE
PHASE DIAGRAMS
SUPERFLUIDITY
TUNNEL EFFECT
TWO-DIMENSIONAL CALCULATIONS