Weakly Nonergodic Dynamics in the Gross-Pitaevskii Lattice

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dc.contributor.authorThudiyangal Mithun-
dc.contributor.authorYagmur Kati-
dc.contributor.authorCarlo Danieli-
dc.contributor.authorSergej Flach-
dc.date.available2018-07-18T02:03:16Z-
dc.date.created2018-05-08-
dc.date.issued2018-05-
dc.identifier.issn0031-9007-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/4531-
dc.description.abstractThe microcanonical Gross-Pitaevskii (also known as the semiclassical Bose-Hubbard) lattice model dynamics is characterized by a pair of energy and norm densities. The grand canonical Gibbs distribution fails to describe a part of the density space, due to the boundedness of its kinetic energy spectrum. We define Poincare ́ equilibrium manifolds and compute the statistics of microcanonical excursion times off them. The tails of the distribution functions quantify the proximity of the many-body dynamics to a weakly nonergodic phase, which occurs when the average excursion time is infinite. We find that a crossover to weakly nonergodic dynamics takes place inside the non-Gibbs phase, being unnoticed by the largest Lyapunov exponent. In the ergodic part of the non-Gibbs phase, the Gibbs distribution should be replaced by an unknown modified one. We relate our findings to the corresponding integrable limit, close to which the actions are interacting through a short range coupling network. © 2018 American Physical Society-
dc.languageENG-
dc.publisherAMER PHYSICAL SOC-
dc.titleWeakly Nonergodic Dynamics in the Gross-Pitaevskii Lattice-
dc.typeArticle-
dc.type.rimsA-
dc.identifier.wosid000432979900022-
dc.identifier.scopusid2-s2.0-85046554613-
dc.date.tcdate2018-10-01-
dc.date.scptcdate2018-10-01-
dc.contributor.affiliatedAuthorThudiyangal Mithun-
dc.contributor.affiliatedAuthorYagmur Kati-
dc.contributor.affiliatedAuthorCarlo Danieli-
dc.contributor.affiliatedAuthorSergej Flach-
dc.identifier.bibliographicCitationPHYSICAL REVIEW LETTERS, v.120, no.18, pp.184101 --
dc.description.scptc0-
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Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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