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  Proposed Parametric Cooling of Bilayer Cuprate Superconductors by Terahertz Excitation

Denny, S. J., Clark, S. R., Laplace, Y., Cavalleri, A., & Jaksch, D. (2015). Proposed Parametric Cooling of Bilayer Cuprate Superconductors by Terahertz Excitation. Physical Review Letters, 114(13): 137001. doi:10.1103/PhysRevLett.114.137001.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-B0DB-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-5970-B
Genre: Journal Article

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 Creators:
Denny, S. J.1, Author
Clark, S. R.1, 2, Author
Laplace, Y.2, Author              
Cavalleri, A.1, 2, Author              
Jaksch, D.1, 3, Author
Affiliations:
1Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom, 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              
3Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore, ou_persistent22              

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Free keywords: PACS numbers: 76.50.+g, 75.25.-j, 76.80.+y, 78.70.Ck
 Abstract: We propose and analyze a scheme for parametrically cooling bilayer cuprates based on the selective driving of a c-axis vibrational mode. The scheme exploits the vibration as a transducer making the Josephson plasma frequencies time dependent. We show how modulation at the difference frequency between the intrabilayer and interbilayer plasmon substantially suppresses interbilayer phase fluctuations, responsible for switching c-axis transport from a superconducting to a resistive state. Our calculations indicate that this may provide a viable mechanism for stabilizing nonequilibrium superconductivity even above Tc, provided a finite pair density survives between the bilayers out of equilibrium.

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Language(s): eng - English
 Dates: 2014-11-192015-03-312015-04-03
 Publication Status: Published in print
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.114.137001
arXiv: 1411.3258
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 114 (13) Sequence Number: 137001 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1