Proposed parametric cooling of bilayer cuprate superconductors by terahertz excitation

S. J. Denny, S. R. Clark, Y. Laplace, A. Cavalleri, D. Jaksch

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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 intra- and interbilayer plasmon substantially suppresses interbilayer phase fluctuations, responsible for switching $c$-axis transport from a superconducting to resistive state. Our calculations indicate that this may provide a viable mechanism for stabilizing non-equilibrium superconductivity even above $T_c$, provided a finite pair density survives between the bilayers out of equilibrium.
Original languageEnglish
Article number137001
Pages (from-to)1-5
Number of pages5
JournalPhysical Review Letters
Volume114
Issue number13
Early online date31 Mar 2015
DOIs
Publication statusPublished - 3 Apr 2015

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cuprates
cooling
plasma frequencies
excitation
vibration mode
transducers
superconductivity
modulation
vibration

Keywords

  • cond-mat.supr-con
  • quant-ph

Cite this

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), 1-5. [137001]. https://doi.org/10.1103/PhysRevLett.114.137001

Proposed parametric cooling of bilayer cuprate superconductors by terahertz excitation. / Denny, S. J.; Clark, S. R.; Laplace, Y.; Cavalleri, A.; Jaksch, D.

In: Physical Review Letters, Vol. 114, No. 13, 137001, 03.04.2015, p. 1-5.

Research output: Contribution to journalArticle

Denny, SJ, Clark, SR, Laplace, Y, Cavalleri, A & Jaksch, D 2015, 'Proposed parametric cooling of bilayer cuprate superconductors by terahertz excitation', Physical Review Letters, vol. 114, no. 13, 137001, pp. 1-5. https://doi.org/10.1103/PhysRevLett.114.137001
Denny, S. J. ; Clark, S. R. ; Laplace, Y. ; Cavalleri, A. ; Jaksch, D. / Proposed parametric cooling of bilayer cuprate superconductors by terahertz excitation. In: Physical Review Letters. 2015 ; Vol. 114, No. 13. pp. 1-5.
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