Stable Fulde-Ferrell-Larkin-Ovchinnikov pairing states in two-dimensional and three-dimensional optical lattices

Journal Article · Wed Jun 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.063621· OSTI ID:21550166

Zi, Cai; Congjun, Wu ^[1]; Yupeng, Wang ^[2]

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1. Department of Physics, University of California, San Diego, California 92093 (United States)
2. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080 Beijing (China)

We present the study of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) pairing states in the p-orbital bands in both two- and three-dimensional optical lattices. Due to the quasi-one-dimensional band structure which arises from the unidirectional hopping of the orthogonal p orbitals, the pairing phase space is not affected by spin imbalance. Furthermore, interactions build up high-dimensional phase coherence which stabilizes the FFLO states in 2D and 3D optical lattices in a large parameter regime in the phase diagram. These FFLO phases are stable with the imposition of the inhomogeneous trapping potential. Their entropies are comparable to the normal states at finite temperatures.

• OSTI ID: 21550166
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
BAND THEORY
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIAGRAMS
ENTROPY
INFORMATION
INTERACTIONS
MATHEMATICAL SPACE
ONE-DIMENSIONAL CALCULATIONS
PAIRING INTERACTIONS
PARTICLE PROPERTIES
PHASE DIAGRAMS
PHASE SPACE
PHYSICAL PROPERTIES
POTENTIALS
SPACE
SPIN
THERMODYNAMIC PROPERTIES
THREE-DIMENSIONAL CALCULATIONS
TRAPPING
TWO-DIMENSIONAL CALCULATIONS