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  • Coexistence of diffusive and ballistic transport in a simple spin ladder
    Žnidarič, Marko
    We show that in a nonintegrable spin ladder system with the XX type of coupling along the legs and the XXZ type along the rungs there are invariant subspaces that support ballistic magnetization ... transport. In the complementary subspace the transport is found to be diffusive. This shows that (i) quantum chaotic systems can possess ballistic subspaces, and (ii) diffusive and ballistic transport modes can coexist in a rather simple nonintegrable model. In the limit of an infinite anisotropy in rungs the system studied is equivalent to the one-dimensional Hubbard model.
    Vir: Physical review letters. - ISSN 0031-9007 (Vol. 110, iss. 7, 2013, str. 070602-1-070602-5)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2013
    Jezik - angleški
    COBISS.SI-ID - 2538340

    Povezava(-e):

    http://prl.aps.org/abstract/PRL/v110/i7/e070602

    Dostop do polnega besedila za naročnike APS Journals



vir: Physical review letters. - ISSN 0031-9007 (Vol. 110, iss. 7, 2013, str. 070602-1-070602-5)
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