Observation of correlated particle-hole pairs and string order in low-dimensional mott insulators

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Endres, M. and Cheneau, M. and Fukuhara, T. and Weitenberg, C. and Schauß, Peter and Gross, C. and Mazza, L. and Bañuls, M.C. and Pollet, L. and Bloch, I. and Kuhr, Stefan (2011) Observation of correlated particle-hole pairs and string order in low-dimensional mott insulators. Science, 334 (6053). pp. 200-203. ISSN 0036-8075 (https://doi.org/10.1126/science.1209284)

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Abstract

Quantum phases of matter are characterized by the underlying correlations of the many-body system. Although this is typically captured by a local order parameter, it has been shown that a broad class of many-body systems possesses a hidden nonlocal order. In the case of bosonic Mott insulators, the ground state properties are governed by quantum fluctuations in the form of correlated particle-hole pairs that lead to the emergence of a nonlocal string order in one dimension. By using high-resolution imaging of low-dimensional quantum gases in an optical lattice, we directly detect these pairs with single-site and single-particle sensitivity and observe string order in the one-dimensional case.

ORCID iDs

Endres, M., Cheneau, M., Fukuhara, T., Weitenberg, C., Schauß, Peter, Gross, C., Mazza, L., Bañuls, M.C., Pollet, L., Bloch, I. and Kuhr, Stefan ORCID logoORCID: https://orcid.org/0000-0001-8386-5357;
  • Item type:Article
    ID code:43504
    Dates:
    Date
    Event
    14 October 2011
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:16 Apr 2013 13:53
    Last modified:12 Dec 2024 02:37
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/43504
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