Blockade and Counterflow Supercurrent in exciton-condensate Josephson junctions

Abstract

We demonstrate that perfect conversion between charged supercurrents in superconductors and neutral supercurrents in electron-hole pair condensates is possible via a new Andreev-like scattering mechanism. As a result, when two superconducting circuits are coupled through a bilayer exciton condensate, the superflow in both layers is drastically modified. Depending on the phase biases the supercurrents can be completely blocked or exhibit perfect drag.

4 pages, 2 figures

References in corpus (13)

• The electronic properties of graphene
• Observation of Van Hove singularities in twisted graphene layers
• Bipolar supercurrent in graphene
• Phase Coherent Transport of Charges in Graphene Quantum Billiard
• Room-Temperature Superfluidity in Graphene Bilayers
• Josephson Current and Multiple Andreev Reflections in Graphene SNS Junctions
• Coulomb Drag in the Exciton Regime in Electron-Hole Bilayers
• Excitonic condensation of massless fermions in graphene bilayers
• Anomalous Coulomb drag in electron-hole bilayers
• Tuning the proximity effect in a superconductor-graphene-superconductor junction
• Tunable Graphene System with Two Decoupled Monolayers
• Proximity Induced Superconductivity and Multiple Andreev Reflections in Few-Layer-Graphene
• Critical tunneling currents in the regime of bilayer excitons

Cited by in corpus (25)

• Strongly correlated excitonic insulator in atomic double layers
• Coulomb drag
• Electron-hole pairing in graphene-GaAs heterostructures
• Interlayer tunneling in counterflow experiments on the excitonic condensate in quantum Hall bilayers
• Model of an exotic chiral superconducting phase in a graphene bilayer
• Mobilities and Scattering Times in Decoupled Graphene Monolayers
• ${\mathbb{Z}}_4$ parafermions in weakly interacting superconducting constrictions at the helical edge of quantum spin Hall insulators
• Spectrum and Coherence Properties of the Current-Mirror Qubit
• Andreev reflection at the edge of a two-dimentional semimetal
• Josephson current in a four terminal superconductor - exciton condensate - superconductor system
• Excitonic condensation in spatially separated one-dimensional systems
• Generalized parafermions and non-local Josephson effect in multi-layer systems
• Nanotransformation and current fluctuations in exciton condensate junctions
• Holographic D3-probe-D5 Model of a Double Layer Dirac Semimetal
• Broken symmetry and competing orders in Weyl semimetal interfaces
• Coherent exciton transport in semiconductors
• Transport properties of an electron-hole bilayer/superconductor hybrid junction
• Phase structure of a holographic double monolayer Dirac semimetal
• Quantum Transport Properties of an Exciton Insulator/Superconductor Hybrid Junction
• Signatures in the conductance for phase transitions in excitonic systems
• Current noise and higher order fluctuations in semiconducting bilayer systems
• Longitudinal Josephson effect in systems with pairing of spatially separated electrons and holes
• Detecting an exciton crystal by statistical means
• Role of the compensating current in the weak Josphson coupling regime: An extended study on excitonic Josephson junctions
• Interlayer current near the edge of an InAs/GaSb double quantum well in proximity with a superconductor