Fluctuation of heat current in Josephson junctions

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • P. Virtanen
  • F. Giazotto

Research units

  • NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR

Abstract

We discuss the statistics of heat current between two superconductors at different temperatures connected by a generic weak link. As the electronic heat in superconductors is carried by Bogoliubov quasiparticles, the heat transport fluctuations follow the Levitov–Lesovik relation. We identify the energy-dependent quasiparticle transmission probabilities and discuss the resulting probability density and fluctuation relations of the heat current. We consider multichannel junctions, and find that heat transport in diffusive junctions is unique in that its statistics is independent of the phase difference between the superconductors.

Details

Original languageEnglish
Article number027140
Pages (from-to)1-10
JournalAIP ADVANCES
Volume5
Issue number2
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

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