Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Transient Dynamics of d-wave Superconductors after a Sudden Excitation

Abstract : Motivated by recent ultafast pump probe experiments on high-temperature superconductors, we discuss the transient dynamics of a d-wave BCS model after a quantum quench of the interaction parameter. We find that the existence of gap nodes, with the associated nodal quasiparticles, introduces a dissipation channel which makes the dynamics much faster than in the conventional s-wave model. For every value of the quench parameters, the superconducting gap rapidly converges to a stationary value smaller than the one at equilibrium. Using a sudden approximation for the gap dynamics, we find an analytical expression for the reduction of spectral weight close to the nodes, which is in qualitative agreement with recent experiments.
Document type :
Preprints, Working Papers, ...
Complete list of metadatas

https://hal-cea.archives-ouvertes.fr/cea-01227936
Contributor : Emmanuelle de Laborderie <>
Submitted on : Thursday, November 12, 2015 - 12:10:55 PM
Last modification on : Thursday, January 11, 2018 - 6:15:44 AM

Links full text

Identifiers

  • HAL Id : cea-01227936, version 1
  • ARXIV : 1506.01409

Collections

CEA | CNRS

Citation

Francesco Peronaci, Marco Schirò, Massimo Capone. Transient Dynamics of d-wave Superconductors after a Sudden Excitation. 2015. ⟨cea-01227936⟩

Share

Metrics

Record views

17