Critical tunneling currents in the regime of bilayer excitons

Abstract

We have investigated the tunneling properties of an electron double quantum well system where the lowest Landau level of each quantum well is half filled. This system is expected to be a Bose condensate of excitons. Our four-terminal dc measurements reveal a nearly vanishing interlayer voltage and the existence of critical tunneling currents which depend on the strength of the condensate state.

arXiv commentTo appear in "Focus on Quantum Correlations in Tailored Matter" in the New Journal of Physics

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• Effects of Fermion Flavor on Exciton Condensation in Double Layer Systems
• Tunable Coupling of Two-Dimensional Superconductors in Bilayer SrTiO3 Heterostructures
• Coherent exciton transport in semiconductors
• Quantum transport simulation of exciton condensate transport physics in a double layer graphene system
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• Topological Excitonic Superfluids in Three Dimensions
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• The Effect of Disorder in Superfluid Double Layer Graphene
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• Electron spin polarization by isospin ordering in correlated two-layer quantum Hall systems
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• Density dependence of the excitation gaps in an undoped Si/SiGe double-quantum-well heterostructure
• Voltage Induced Dynamical Quantum Phase Transitions in Exciton Condensates
• Role of the compensating current in the weak Josphson coupling regime: An extended study on excitonic Josephson junctions