Abstract
We present a robust scheme by which fractional quantum Hall states of bosons can be achieved for ultracold atomic gases. We describe a new form of optical flux lattice, suitable for commonly used atomic species with ground state angular momentum , for which the lowest energy band is topological and nearly dispersionless. Through exact diagonalization studies, we show that, even for moderate interactions, the many-body ground states consist of bosonic fractional quantum Hall states, including the Laughlin state and the Moore-Read (Pfaffian) state. These phases are shown to have energy gaps that are larger than temperature scales achievable in ultracold gases.
- Received 14 December 2012
DOI:https://doi.org/10.1103/PhysRevLett.110.185301
© 2013 American Physical Society
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Toward Fractional Quantum Hall Physics with Cold Atoms
Published 29 April 2013
Researchers propose new ways to recreate fractional quantum Hall physics using ultracold atoms and molecules.
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