Fingerprint of topological Andreev bound states in phase-dependent heat transport

Abstract

We demonstrate that phase-dependent heat currents through superconductor-topological insulator Josephson junctions provide a useful tool to probe the existence of topological Andreev bound states, even for multi-channel surface states. We predict that in the tunneling regime topological Andreev bound states lead to a minimum of the thermal conductance for a phase difference $\varphi =\pi$, in clear contrast to a maximum of the thermal conductance at $\varphi =\pi$ that occurs for trivial Andreev bound states in superconductor-normal metal tunnel junctions. This opens up the possibility that phase-dependent heat transport can distinguish between topologically trivial and nontrivial 4$\pi$ modes. Furthermore, we propose a superconducting quantum interference device geometry where phase-dependent heat currents can be measured using available experimental technology.

5 pages, 3 figures + supplemental material, published version

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Cited by in corpus (27)

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• High efficiency thermal switch based on topological Josephson junctions
• Phase-dependent heat and charge transport through superconductor-quantum dot hybrids
• Thermopower and thermal conductance of a superconducting quantum point contact
• Thermoelectric transport in junctions of Majorana and Dirac channels
• Nonlocal thermoelectricity in a topological Andreev interferometer
• Phase-coherent caloritronics with ordinary and topological Josephson junctions
• Helical spin thermoelectrics controlled by a side-coupled magnetic quantum dot in the quantum spin Hall state
• Nonlocal thermoelectric engines in hybrid topological Josephson junctions
• A Topological SQUIPT based on helical edge states in proximity to superconductors
• Quantum thermodynamics of nanoscale thermoelectrics and electronic devices
• Thermal signature of Majorana fermions in Josephson junction
• Signatures of Jackiw-Rebbi resonance in the thermal conductance of topological Josephson junctions with magnetic islands
• Phase-dependent heat transport in Josephson junctions with p-wave superconductors and superfluids
• Quasiparticles-mediated thermal diode effect in Weyl Josephson junctions
• Thermodynamics in topological Josephson junctions
• Planar Josephson Hall effect in topological Josephson junctions
• ${\theta }_0$ thermal Josephson junction
• Josephson radiation from nonlinear dynamics of Majorana zero modes
• Thermoelectric processes of quantum normal-superconductor interfaces
• Quasiparticle cooling using a Topological insulator-Superconductor hybrid junction
• Spin-resolved spectroscopy of helical Andreev bound states
• Transport signatures of inverted Andreev bands in topological Josephson junctions
• Josephson radiation patterns in underdamped topological Josephson junctions