Fluctuation of heat current in Josephson junctions

Journal Article · Sun Feb 15 00:00:00 EST 2015 · AIP Advances

DOI:https://doi.org/10.1063/1.4914077· OSTI ID:22454464

Giazotto, F. ^[1]

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1. NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, I-56127 Pisa (Italy)

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.

• OSTI ID: 22454464
• Journal Information: AIP Advances, Vol. 5, Issue 2; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DENSITY
ENERGY DEPENDENCE
HEAT
HEAT TRANSFER
JOSEPHSON JUNCTIONS
PROBABILITY
QUASI PARTICLES
SUPERCONDUCTORS