Simulating and detecting the quantum spin Hall effect in the kagome optical lattice

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.053605· OSTI ID:21528685

Guocai, Liu; Shaojian, Jiang; Fadi, Sun; Liu, W M ^[1]; Shiliang, Zhu ^[2]

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1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
2. Laboratory of Quantum Information Technology, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou (China)

We propose a model which includes a nearest-neighbor intrinsic spin-orbit coupling and a trimerized Hamiltonian in the kagome lattice and promises to host the transition from the quantum spin Hall insulator to the normal insulator. In addition, we design an experimental scheme to simulate and detect this transition in the ultracold atom system. The lattice intrinsic spin-orbit coupling is generated via the laser-induced-gauge-field method. Furthermore, we establish the connection between the spin Chern number and the spin-atomic density which enables us to detect the quantum spin Hall insulator directly by the standard density-profile technique used in atomic systems.

• OSTI ID: 21528685
• Journal Information: Physical Review. A, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevA.82.053605; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CRYSTAL LATTICES
DENSITY
DESIGN
HALL EFFECT
HAMILTONIANS
LASER RADIATION
L-S COUPLING
SPIN
ANGULAR MOMENTUM
COUPLING
CRYSTAL STRUCTURE
ELECTROMAGNETIC RADIATION
INTERMEDIATE COUPLING
MATHEMATICAL OPERATORS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUANTUM OPERATORS
RADIATIONS