Measuring entanglement growth in quench dynamics of bosons in an optical lattice

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Daley, A.J. and Pichler, H. and Schachenmayer, J. and Zoller, P. (2012) Measuring entanglement growth in quench dynamics of bosons in an optical lattice. Physical Review Letters, 109 (2). 020505. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.109.020505)

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Abstract

We discuss a scheme to measure the many-body entanglement growth during quench dynamics with bosonic atoms in optical lattices. By making use of a 1D or 2D setup in which two copies of the same state are prepared, we show how arbitrary order Rényi entropies can be extracted by using tunnel coupling between the copies and measurement of the parity of on-site occupation numbers, as has been performed in recent experiments. We illustrate these ideas for a superfluid-Mott insulator quench in the Bose-Hubbard model, and also for hard-core bosons, and show that the scheme is robust against imperfections in the measurements.

ORCID iDs

Daley, A.J. ORCID logoORCID: https://orcid.org/0000-0001-9005-7761, Pichler, H., Schachenmayer, J. and Zoller, P.;
  • Item type:Article
    ID code:45204
    Dates:
    Date
    Event
    12 July 2012
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:16 Oct 2013 09:56
    Last modified:22 Dec 2024 19:35
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/45204
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