Supercurrent carried by non-equlibrium quasiparticles in a multiterminal Josephson junction

Abstract

We theoretically study coherent multiple Andreev reflections in a biased three-terminal Josephson junction. We demonstrate that the direct current flowing through the junction consists of supercurrent components when the bias voltages are commensurate. This dissipationless current depends on the phase in the superconducting leads and stems from the Cooper pair transfer processes induced by non-local Andreev reflections of the quasiparticles originating from the superconducting leads. We identify supercurrent-enhanced lines in the current and conductance maps of the recent measurement [Y. Cohen, et al., PNAS 115, 6991 (2018)] on a nanowire Josephson junction and show that the magnitude of the phase-dependent current components is proportional to the junction transparency with the power corresponding to the component order.

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Cited by in corpus (16)

• The multi-terminal Josephson effect
• Transport Studies in a Gate-Tunable Three-Terminal Josephson Junction
• Hard superconducting gap in germanium
• The Multi-terminal Inverse AC Josephson Effect
• A Ballistic Graphene Cooper Pair Splitter
• Selective Control of Conductance Modes in Multi-terminal Josephson Junctions
• Engineering the Floquet spectrum of superconducting multiterminal quantum dots
• A quantum interferometer for quartets in superconducting three-terminal Josephson junctions
• Probing the topological band structure of diffusive multiterminal Josephson junction devices with conductance measurements
• Superconductor/normal-metal/superconductor junction of topological superconductors revisited: Fractional Josephson current, fermion parity, and oscillating wavefunctions
• Phase-tunable multiple Andreev reflections in a quantum spin Hall strip
• Self-heating effects and switching dynamics in graphene multiterminal Josephson junctions
• Enhancement of the topological regime in elongated Josephson junctions
• Dynamical Stabilization of Multiplet Supercurrents in Multi-terminal Josephson Junctions
• Supercurrent tuning of the Josephson coupling energy
• Impact of spin-orbit coupling and Zeeman interaction on the multiple Andreev reflections subharmonic gap structure in nanoscopic Josephson junctions