Quantum transport in semiconductor-superconductor microjunctions
C. W. J. Beenakker
DOI 10.1103/PhysRevB.46.12841 · Physical Review B
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Abstract
A formula is derived that relates the conductance of a normal-metal–superconductor (NS) junction to the single-electron transmission eigenvalues. The formula is applied to a quantum point contact (yielding conductance quantization at multiples of 4e2/h), to a quantum dot (yielding a non-Lorentzian conductance resonance), and to quantum interference effects in a disordered NS junction (enhanced weak-localization and reflectionless tunneling through a potential barrier).
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