BROWSE

Related Scientist

pcs's photo.

pcs
복잡계이론물리연구단
more info

ITEM VIEW & DOWNLOAD

Probing an excited-state quantum phase transition in a quantum many-body system via an out-of-time-order correlator

DC Field Value Language
dc.contributor.authorQian Wang-
dc.contributor.authorPerez-Bernal, F-
dc.date.available2020-01-31T00:50:47Z-
dc.date.created2020-01-07-
dc.date.issued2019-12-
dc.identifier.issn2469-9926-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/6716-
dc.description.abstractOut-of-time-order correlators (OTOCs) play an increasingly important role in different fields of physics and in particular they provide a way of quantifying information scrambling in quantum many-body systems. We verify that an OTOC can be used to probe an excited-state quantum phase transition (ESQPT) in a quantum many-body system. We examine the dynamical properties of an OTOC in the Lipkin-Meshkov-Glick model, which undergoes an ESQPT, using the exact diagonalization method. We show that the long-time evolution of the proposed OTOC is remarkably different in the different phases of the ESQPT. In consequence, we put the long-time averaged value of the OTOC forward as a possible ESQPT order parameter. Our results highlight the connections between OTOCs and ESQPTs, opening the possibility of using OTOCs for accessing experimentally ESQPTs in quantum many-body systems. ©2019 American Physical Society-
dc.language영어-
dc.publisherAMER PHYSICAL SOC-
dc.titleProbing an excited-state quantum phase transition in a quantum many-body system via an out-of-time-order correlator-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000501802800002-
dc.identifier.scopusid2-s2.0-85076962884-
dc.identifier.rimsid71073-
dc.contributor.affiliatedAuthorQian Wang-
dc.identifier.doi10.1103/PhysRevA.100.062113-
dc.identifier.bibliographicCitationPhysical Review a, v.100, no.6, pp.062113-
dc.relation.isPartOfPhysical Review a-
dc.citation.titlePhysical Review a-
dc.citation.volume100-
dc.citation.number6-
dc.citation.startPage062113-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalWebOfScienceCategoryOptics-
dc.relation.journalWebOfScienceCategoryPhysics, Atomic, Molecular & Chemical-
dc.subject.keywordPlusDYNAMICS-
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
PhysRevA.100.062113.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse