Continuous Preparation of a Fractional Chern Insulator.

Barkeshli, M; Yao, N Y; Laumann, C R

Barkeshli, M; Yao, N Y; Laumann, C R.

Afiliación

Barkeshli M; Microsoft Station Q, Elings Hall, University of California, Santa Barbara, Santa Barbara, California 93106, USA.
Yao NY; Department of Physics, University of California, Berkeley, Berkeley, California 94720, USA.
Laumann CR; Department of Physics, University of Washington, Seattle, Washington 98195, USA.

Phys Rev Lett ; 115(2): 026802, 2015 Jul 10.

Article en En | MEDLINE | ID: mdl-26207492

RESUMEN

We present evidence of a direct, continuous quantum phase transition between a Bose superfluid and the ν=1/2 fractional Chern insulator in a microscopic lattice model. In the process, we develop a detailed field theoretic description of this transition in terms of the low energy vortex dynamics. The theory explicitly accounts for the structure of lattice symmetries and predicts a Landau forbidden transition that is protected by inversion. That the transition is continuous enables the quasiadiabatic preparation of the fractional Chern insulator in nonequilibrium, quantum optical systems.

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Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Phys Rev Lett Año: 2015 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos

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