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  Quantum time crystals with programmable disorder in higher dimensions

Kshetrimayum, A., Goihl, M., Kennes, D. M., & Eisert, J. (2021). Quantum time crystals with programmable disorder in higher dimensions. Physical Review B, 103(22): 224205. doi:10.1103/PhysRevB.103.224205.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-BCB4-9 Version Permalink: https://hdl.handle.net/21.11116/0000-000B-E443-8
Genre: Journal Article

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PhysRevB.103.224205.pdf (Publisher version), 2MB
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https://dx.doi.org/10.1103/PhysRevB.103.224205 (Publisher version)
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https://arxiv.org/abs/2004.07267 (Preprint)
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 Creators:
Kshetrimayum, A.1, 2, Author
Goihl, M.2, Author
Kennes, D. M.3, 4, 5, Author           
Eisert, J.1, 2, Author
Affiliations:
1Helmholtz Center Berlin, ou_persistent22              
2Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, ou_persistent22              
3Institut für Theorie der Statistischen Physik, RWTH Aachen and JARA Fundamentals of Future Information Technology, ou_persistent22              
4Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
5Center for Free Electron Laser Science, ou_persistent22              

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 Abstract: We present fresh evidence for the presence of discrete quantum time crystals in two spatial dimensions. Discrete time crystals are intricate quantum systems that break discrete time translation symmetry in driven quantum many-body systems undergoing nonequilibrium dynamics. They are stabilized by many-body localization arising from disorder. We directly target the thermodynamic limit using instances of infinite tensor network states, and we implement disorder in a translationally invariant setting by introducing auxiliary systems at each site. We discuss how such disorder can be realized in programmable quantum simulators: This gives rise to the interesting situation in which a classical tensor network simulation can contribute to devising a blueprint of a quantum simulator featuring prethermal time crystalline dynamics, one that will ultimately have to be built in order to explore the stability of this phase of matter for long times.

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Language(s): eng - English
 Dates: 2020-12-222021-05-212021-06-102021-06-01
 Publication Status: Issued
 Pages: -
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 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.103.224205
arXiv: 2004.07267
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Project name : -
Grant ID : 817482
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : This work has been supported by the Templeton Foundation, the FQXi, the DFG (EI 519/14-1, EI 519/15-1, CRC 183 Projects B01 and A03, and FOR 2724), and MATH+. This work has also received funding from the European Unions Horizon 2020 research and innovation programme under Grant Agreement No. 817482 (PASQuanS) on programmable quantum simulators. D.M.K. acknowledges support under Germany's Excellence Strategy–Cluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1-390534769 and from the Max Planck-New York City Center for Non-Equilibrium Quantum Phenomena.
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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: 103 (22) Sequence Number: 224205 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008