Jean-Marc Triscone awarded a honorary doctorate

by the Norwegian University of Science and Technology (NTNU)

Read more

next Q-MAC meetings in 2018:

3rd Q-MAC symposium in Venice, May 22-25, 2018.

Next regular meeting in Paris, November 27-28, 2018.

Read more

Publication Detail / Abstract

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

Proposed Parametric Cooling of Bilayer Cuprate Superconductors by Terahertz Excitation

Editors' Suggestion - published in PRL on March 31, 2015
> Full text via publisher

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 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.

 

Editors' Suggestion!!!

Synopsis: Making Superconductors Sturdier

< Back