Coherent diffraction of thermal currents in Josephson tunnel junctions

Abstract

We theoretically investigate heat transport in temperature-biased Josephson tunnel junctions in the presence of an in-plane magnetic field. In full analogy with the Josephson critical current, the phase-dependent component of the heat flux through the junction displays coherent diffraction. Thermal transport is analyzed in three prototypical junction geometries highlighting their main differences. Notably, minimization of the Josephson coupling energy requires the quantum phase difference across the junction to undergo π-slips in suitable intervals of magnetic flux. An experimental setup suited to detect thermal diffraction is proposed and analyzed.

6.5 pages, 4 color figures, updated version

References in corpus (11)

• Single-mode heat conduction by photons
• The Josephson heat interferometer
• Heat Transistor: Demonstration of Gate-Controlled Electron Refrigeration
• Recombination limited energy relaxation in a BCS superconductor
• Efficient phase-tunable Josephson thermal rectifier
• Ultrasensitive Proximity Josephson Sensor with Kinetic Inductance Read-Out
• Phase Modulated Thermal Conductance of Josephson Weak Links
• Phase-controlled superconducting heat-flux quantum modulator
• Heat transport through a Josephson junction
• Fully-Balanced Heat Interferometer
• Static Solitons of the Sine-Gordon Equation and Equilibrium Vortex Structure in Josephson Junctions

Cited by in corpus (24)

• Towards phase-coherent caloritronics in superconducting circuits
• Realization of quantum diffraction of a thermal flux
• Coherent caloritronics in Josephson-based nanocircuits
• Voltage drop across Josephson junctions for Lévy noise detection
• High efficiency thermal switch based on topological Josephson junctions
• Josephson-Threshold Calorimeter
• Lévy noise effects on Josephson junctions
• A Microwave Josephson Refrigerator
• Phase-dependent heat and charge transport through superconductor-quantum dot hybrids
• Solitonic Josephson-based meminductive systems
• Thermal noise effects on the magnetization switching of a ferromagnetic anomalous Josephson junction
• Non-linear critical current thermal response of an asymmetric Josephson tunnel junction
• Phase-coherent solitonic Josephson heat oscillator
• Coherent diffraction of thermal currents in long Josephson tunnel junctions
• A Josephson radiation comb generator
• Solitonic Josephson thermal transport
• Phase-coherent caloritronics with ordinary and topological Josephson junctions
• Solitonic thermal transport in a current biased long Josephson junction
• Measurement and dephasing of a flux qubit due to heat currents
• Proximity SQUID single photon detector via temperature-to-voltage conversion
• Radiation comb generation with extended Josephson junctions
• Thermal flux-flow regime in long Josephson tunnel junctions
• Parasitic effects in SQUID-based radiation comb generators
• Phase-dependent heat current of granular Josephson junction for different geometries