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  • Macroscopic diffusive transport in a microscopically integrable Hamiltonian system
    Prosen, Tomaž, 1970- ; Žunkovič, Bojan
    We demonstrate that a completely integrable classical mechanical model, namely the lattice Landau-Lifshitz classical spin chain, supports diffusive spin transport with a finite diffusion constant in ... the easy-axis regime, while in the easy-plane regime, it displays ballistic transport in the absence of any known relevant local or quasilocal constant of motion in the symmetry sector of the spin current. This surprising finding should open the way towards analytical computation of diffusion constants for integrable interacting systems and hints on the existence of new quasilocal classical conservation laws beyond the standard soliton theory.
    Source: Physical review letters. - ISSN 0031-9007 (Vol. 111, iss. 4, 2013, str. 040602-1-040602-5)
    Type of material - article, component part
    Publish date - 2013
    Language - english
    COBISS.SI-ID - 2573156

source: Physical review letters. - ISSN 0031-9007 (Vol. 111, iss. 4, 2013, str. 040602-1-040602-5)
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