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Author Yaohua, Chen ♦ Wei, Wu ♦ Hongshuai, Tao ♦ Wuming, Liu
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ATOMIC AND MOLECULAR PHYSICS ♦ APPROXIMATIONS ♦ ATOMS ♦ ENERGY GAP ♦ FERMI GAS ♦ FERMI LEVEL ♦ INTERATOMIC FORCES ♦ KONDO EFFECT ♦ MONTE CARLO METHOD ♦ RESONANCE ♦ TWO-DIMENSIONAL CALCULATIONS ♦ CALCULATION METHODS ♦ ENERGY LEVELS
Abstract We investigate the strongly correlated effect of cold atoms in a triangular optical lattice using the dynamical cluster approximation combined with the continuous-time quantum Monte Carlo method. When the interaction increases, the Fermi surface evolves from a circular ring into a flat plane, and the system transitions from a Fermi liquid into a Mott insulator. The transition between the Fermi liquid and a pseudogap shows a reentrant behavior due to the Kondo effect. We give an experimental protocol to observe these phenomena in future experiments by varying the lattice depth and the atomic interaction via the Feshbach resonance.
ISSN 10502947
Educational Use Research
Learning Resource Type Article
Publisher Date 2010-10-15
Publisher Place United States
Journal Physical Review. A
Volume Number 82
Issue Number 4


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