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  Nonthermal symmetry-broken states in the strongly interacting Hubbard model

Werner, P., Tsuji, N., & Eckstein, M. (2012). Nonthermal symmetry-broken states in the strongly interacting Hubbard model. Physical Review B, 86(20): 205101. doi:10.1103/PhysRevB.86.205101.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-1628-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-2EDD-E
Genre: Journal Article

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PhysRevB.86.205101.pdf (Publisher version), 392KB
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PhysRevB.86.205101.pdf
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2012
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© American Physical Society
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http://dx.doi.org/10.1103/PhysRevB.86.205101 (Publisher version)
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http://arxiv.org/abs/1208.0743 (Preprint)
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 Creators:
Werner, Philipp1, Author
Tsuji, Naoto1, Author
Eckstein, Martin2, 3, Author              
Affiliations:
1Department of Physics, University of Fribourg, 1700 Fribourg, Switzerland, ou_persistent22              
2Theory of Correlated Systems out of Equilibrium, Research Groups, Max Planck Research Department for Structural Dynamics, Department of Physics, University of Hamburg, External Organizations, ou_2173641              
3CFEL, Hamburg, Germany, ou_persistent22              

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Free keywords: PACS number: 71.10.Fd
 Abstract: We study the time evolution of the antiferromagnetic order parameter after interaction quenches in the Hubbard model. Using the nonequilibrium dynamical mean-field formalism, we show that the system, after a quench from intermediate to strong interaction, is trapped in a nonthermal state which is reminiscent of a photodoped state and protected by the slow decay of doublons. If the effective doping of this state is low enough, it exhibits robust antiferromagnetic order, even if the system is highly excited and the thermal state is thus expected to be paramagnetic. We comment on the implication of our findings for the stability of nonthermal superconducting states.

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Language(s): eng - English
 Dates: 2012-08-032012-11-012012-11-15
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.86.205101
arXiv: 1208.0743
 Degree: -

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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 86 (20) Sequence Number: 205101 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008