Quantum Criticality in Resonant Andreev Conduction
arXiv:1706.04726 · doi:10.1103/PhysRevLett.119.116802
Abstract
Motivated by recent experiments with proximitized nanowires, we study a mesoscopic s-wave superconductor connected via point contacts to normal-state leads. We demonstrate that at energies below the charging energy the system is described by the two-channel Kondo model, which can be brought to the quantum critical regime by varying the gate potential and conductances of the contacts.
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