Bosons under an artificial staggered magnetic field in an optical ladder

ORAL

Abstract

We calculate the ground state properties of cold bosons in an frustrated optical ladder due to an artificial staggered magnetic field. By investigating the momentum distribution of bosons via a Lanczos diagonalization method, we find the signature of the transition from the Meissner to vortex states as a function of the staggering strength of the field. Various states with different frustrations are discussed.

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Authors

  • Min-Chul Cha

    Department of Applied Physics, Hanyang University, Ansan, Gyunggi-do, 426-791 Korea

  • In-Ho Jeon

    Department of Applied Physics, Hanyang University, Ansan, Gyunggi-do, 426-791 Korea

  • Tae-Yang An

    Department of Applied Physics, Hanyang University, Ansan, Gyunggi-do, 426-791 Korea