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  Dynamical Order and Superconductivity in a Frustrated Many-Body System

Tindall, J., Schlawin, F., Buzzi, M., Nicoletti, D., Coulthard, J. R., Gao, H., et al. (2020). Dynamical Order and Superconductivity in a Frustrated Many-Body System. Physical Review Letters, 125(13): 137001. doi:10.1103/PhysRevLett.125.137001.

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PhysRevLett.125.137001.pdf (Verlagsversion), 650KB
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Supplemental.pdf (Ergänzendes Material), 556KB
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Supplemental Material. - Additional plots showing the magnetic correlations of various states in the equilibrium phase diagram. Finite-size scaling analysis for the transitions observed in the model. Additional plots showing how our results hold for different forms of driving and parameters to those considered in the main text. Explicit demonstration of the diabatic behaviour of the system when driven at larger frequencies.
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https://arxiv.org/abs/2005.09073 (Preprint)
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https://dx.doi.org/10.1103/PhysRevLett.125.137001 (Verlagsversion)
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Urheber

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 Urheber:
Tindall, J.1, Autor
Schlawin, F.1, Autor
Buzzi, M.2, Autor           
Nicoletti, D.2, Autor           
Coulthard, J. R.1, Autor
Gao, H.1, Autor
Cavalleri, A.1, 2, Autor           
Sentef, M. A.3, 4, Autor           
Jaksch, D.1, 5, Autor
Affiliations:
1Clarendon Laboratory, University of Oxford, ou_persistent22              
2Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
3Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              
4Institute for Theoretical Physics, University of Bremen, ou_persistent22              
5Centre for Quantum Technologies, National University of Singapore, ou_persistent22              

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 Zusammenfassung: In triangular lattice structures, spatial anisotropy and frustration can lead to rich equilibrium phase diagrams with regions containing complex, highly entangled states of matter. In this work, we study the driven two-rung triangular Hubbard model and evolve these states out of equilibrium, observing how the interplay between the driving and the initial state unexpectedly shuts down the particle-hole excitation pathway. This restriction, which symmetry arguments fail to predict, dictates the transient dynamics of the system, causing the available particle-hole degrees of freedom to manifest uniform long-range order. We discuss implications of our results for a recent experiment on photoinduced superconductivity in κ−(BEDT−TTF)2Cu[N(CN)2]Br molecules.

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Sprache(n): eng - English
 Datum: 2020-08-232020-05-142020-08-252020-09-222020-09-25
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: arXiv: 2005.09073
DOI: 10.1103/PhysRevLett.125.137001
 Art des Abschluß: -

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Projektname : -
Grant ID : 319286
Förderprogramm : Funding Programme 7 (FP7)
Förderorganisation : European Commission (EC)
Projektname : We would like to acknowledge B. Buca for helpful discussions. We performed our calculations using Matrix Product State methods adapted using the Tensor Network Theory library [47]. This work has been supported by EPSRC Grants No. EP/P009565/1 and No. EP/K038311/1 and is partially funded by the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013)/ERC Grant Agreement No. 319286 Q-MAC. M. A. S. acknowledges support by the DFG through the Emmy Noether programme (SE 2558/2-1). J. T. is also supported by funding from Simon Harrison and D. J. partially carried out this work while visiting the Institute for Mathematical Sciences, National University of Singapore. Finally, our calculations were run on the University of Oxford Advanced Research Computing (ARC) facility.
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Quelle 1

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Titel: Physical Review Letters
  Kurztitel : Phys. Rev. Lett.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Woodbury, N.Y. : American Physical Society
Seiten: - Band / Heft: 125 (13) Artikelnummer: 137001 Start- / Endseite: - Identifikator: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1