Integer quantum hall state in two-component bose gases in a synthetic magnetic field

Shunsuke Furukawa, Masahito Ueda

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

We study two-component (or pseudospin-1/2) Bose gases in a strong synthetic magnetic field. Using exact diagonalization, we show that a bosonic analog of an integer quantum Hall state with no intrinsic topological order appears at the total filling factor ν=1+1 when the strengths of intracomponent and intercomponent interactions are comparable with each other. This provides a prime example of a symmetry-protected topological phase in a controlled setting of quantum gases. The real-space entanglement spectrum of this state is found to be comprised of counterpropagating chiral modes consistent with the edge theory derived from an effective Chern-Simons theory.

Original languageEnglish
Article number090401
JournalPhysical Review Letters
Volume111
Issue number9
DOIs
Publication statusPublished - 2013 Aug 26
Externally publishedYes

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integers
gases
magnetic fields
analogs
symmetry
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Integer quantum hall state in two-component bose gases in a synthetic magnetic field. / Furukawa, Shunsuke; Ueda, Masahito.

In: Physical Review Letters, Vol. 111, No. 9, 090401, 26.08.2013.

Research output: Contribution to journalArticle

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