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arXiv · 1906.01682

Landauer Formula for a Superconducting Quantum Point Contact

Sergey S. Pershoguba·Thomas Veness·Leonid I. Glazman
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Abstract

We generalize the Landauer formula to describe the dissipative electron transport through a superconducting point contact. The finite-temperature, linear-in-bias, dissipative DC conductance is expressed in terms of the phase- and energy-dependent scattering matrix of the Bogoliubov quasiparticles in the quantum point contact. The derived formula is also applicable to hybrid superconducting-normal structures and normal contacts, where it agrees with the known limits of Andreev reflection and normal-state conductance, respectively.

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Sergey S. Pershoguba, Thomas Veness, Leonid I. Glazman. 2019-06-04. Landauer Formula for a Superconducting Quantum Point Contact. https://doi.org/10.1103/physrevlett.123.067001

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