dc.contributor.author | Gemsheim, Sebastian | |
dc.contributor.author | Mandal, Ipsita | |
dc.contributor.author | Sengupta, Krishnendu | |
dc.contributor.author | Wang, Zhiqiang | |
dc.date.accessioned | 2023-02-03T12:32:10Z | |
dc.date.available | 2023-02-03T12:32:10Z | |
dc.date.created | 2020-01-22T17:29:52Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Gemsheim, S., Mandal, I., Sengupta, K., & Wang, Z. (2020). Order parameter dynamics of the non-linear sigma model in the large N limit. The European Physical Journal B, 93, 1-8. | en_US |
dc.identifier.issn | 1434-6028 | |
dc.identifier.uri | https://hdl.handle.net/11250/3048315 | |
dc.description.abstract | We study non-equilibrium order parameter dynamics of the non-linear sigma model in the large N limit, using Keldysh formalism. We provide a scheme for obtaining stable numerical solution of the Keldysh saddle point equations and use them to study order parameter dynamics of the model either following a ramp, or in the presence of a periodic drive. We find that the transient dynamics of the order parameter in the presence of a periodic drive is controlled by the drive frequency displaying the phenomenon of synchronization. We also study the approach of the order parameter to its steady state value following a ramp and find out the effective temperature of the steady state. We chart out the steady state temperature of the ordered phase as a function of ramp time and amplitude, and discuss the relation of our results to experimentally realizable spin models. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Springer | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Order parameter dynamics of the non-linear sigma model in the large N limit | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | The authors | en_US |
dc.subject.nsi | VDP::Matematikk og Naturvitenskap: 400 | en_US |
dc.source.volume | 93 | en_US |
dc.source.journal | European Physical Journal B : Condensed Matter Physics | en_US |
dc.identifier.doi | 10.1140/epjb/e2020-100445-1 | |
dc.identifier.cristin | 1780396 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |