Directional correlations in quantum walks with two particles

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Štefaňák, M. and Barnett, S M and Kollár, B and Kiss, T and Jex, I (2011) Directional correlations in quantum walks with two particles. New Journal of Physics, 13. 033029. ISSN 1367-2630 (https://doi.org/10.1088/1367-2630/13/3/033029)

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Abstract

Quantum walks on a line with a single particle possess a classical analogue. Involving more walkers opens up the possibility of studying collective quantum effects, such as many-particle correlations. In this context, entangled initial states and the indistinguishability of the particles play a role. We consider the directional correlations between two particles performing a quantum walk on a line. For non-interacting particles, we find analytic asymptotic expressions and give the limits of directional correlations. We show that by introducing delta-interaction between the particles, one can exceed the limits for non-interacting particles.

  • Item type:Article
    ID code:31066
    Dates:
    Date
    Event
    21 March 2011
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:16 May 2011 10:27
    Last modified:11 Nov 2024 09:44
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/31066
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