Solitonic Josephson thermal transport

Abstract

We explore the coherent thermal transport sustained by solitons through a long Josephson junction, as a thermal gradient across the system is established. We observe that a soliton causes the heat current through the system to increase. Correspondingly, the junction warms up in correspondence of the soliton, with temperature peaks up to, e.g., approximately 56 mK for a realistic Nb-based proposed setup at a bath temperature Tbath = 4.2 K. The thermal effects on the dynamics of the soliton are also discussed. Markedly, this system inherits the topological robustness of the solitons. In view of these results, the proposed device can effectively find an application as a superconducting thermal router in which the thermal transport can be locally mastered through solitonic excitations, which positions can be externally controlled through a magnetic field and a bias current.

9 pages, 6 figures

References in corpus (10)

• The Josephson heat interferometer
• Switching times in long-overlap Josephson junctions subject to thermal fluctuations and non-Gaussian noise sources
• Recombination limited energy relaxation in a BCS superconductor
• Phase-controlled superconducting heat-flux quantum modulator
• Josephson thermal memory
• Heat transport through a Josephson junction
• Manipulation and Generation of Supercurrent in Out-of-Equilibrium Josephson Tunnel Nanojunctions
• Phase-Dependent Electronic Specific Heat in Mesoscopic Josephson Junctions
• Phase-tunable Josephson thermal router
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Cited by in corpus (18)

• Designing nonlinear thermal devices and metamaterials under the Fourier's law: A route to nonlinear thermotics
• Josephson-Threshold Calorimeter
• Lévy noise effects on Josephson junctions
• Generation of travelling sine-Gordon breathers in noisy long Josephson junctions
• Non-linear critical current thermal response of an asymmetric Josephson tunnel junction
• Phase-coherent solitonic Josephson heat oscillator
• Phase-coherent caloritronics with ordinary and topological Josephson junctions
• Breather dynamics in a stochastic sine-Gordon equation: evidence of noise-enhanced stability
• Supratransmission-induced travelling breathers in long Josephson junctions
• rf-SQUID measurements of anomalous Josephson effect
• Nonlocal thermoelectric engines in hybrid topological Josephson junctions
• Phase-coherent heat circulators with normal- or superconducting contacts
• ac-locking of thermally-induced sine-Gordon breathers
• Solitonic thermal transport in a current biased long Josephson junction
• Heat-transfer fingerprint of Josephson breathers
• Thermal flux-flow regime in long Josephson tunnel junctions
• Cyclic Superconducting Quantum Refrigerators Using Guided Fluxon Propagation
• Temperature-biased double-loop Josephson flux transducer