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  Stark time crystals: Symmetry breaking in space and time

Kshetrimayum, A., Eisert, J., & Kennes, D. M. (2020). Stark time crystals: Symmetry breaking in space and time. Physical Review B, 102(19): 195116. doi:10.1103/PhysRevB.102.195116.

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© American Physical Society

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https://dx.doi.org/10.1103/PhysRevB.102.195116 (Publisher version)
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https://arxiv.org/abs/2007.13820 (Preprint)
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 Creators:
Kshetrimayum, A.1, 2, Author
Eisert, J.1, 2, Author
Kennes, D. M.3, 4, 5, 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-FIT, Jülich Aachen Research Alliance and 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: The compelling original idea of a time crystal has referred to a structure that repeats in time as well as in space, an idea that has attracted significant interest recently. While obstructions to realize such structures became apparent early on, focus has shifted to seeing a symmetry breaking in time in periodically driven systems, a property of systems referred to as discrete time crystals. In this work, we introduce Stark time crystals based on a type of localization that is created in the absence of any spatial disorder. We argue that Stark time crystals constitute a phase of matter coming very close to the original idea and exhibit a symmetry breaking in space and time. Complementing a comprehensive discussion of the physics of the problem, we move on to elaborating on possible practical applications, and we argue that the physical demands of witnessing genuine signatures of many-body localization in large systems may be lessened in such physical systems.

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Language(s): eng - English
 Dates: 2020-10-262020-08-072020-10-282020-11-102020-11-15
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.102.195116
arXiv: 2007.13820
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Project name : -
Grant ID : 817482
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy–Cluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1-390534769 under CRC 183 (Project B01) and EI 519/15-1. It has also been supported by the Templeton Foundation and has received funding from the European Unions Horizon 2020 research and innovation programme under Grant Agreement No. 817482 (PASQuanS). We acknowledge support 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: 102 (19) Sequence Number: 195116 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008