Landauer Formula for a Superconducting Quantum Point Contact

Pershoguba, Sergey S.; Veness, Thomas; Glazman, Leonid I.

doi:10.1103/physrevlett.123.067001

Landauer Formula for a Superconducting Quantum Point Contact

Journal Article · Wed Aug 07 00:00:00 EDT 2019 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.123.067001· OSTI ID:1609978

Pershoguba, Sergey S. ^[1]; Veness, Thomas ^[2]; Glazman, Leonid I. ^[2]

Yale Univ., New Haven, CT (United States); DOE/OSTI
Yale Univ., New Haven, CT (United States)

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. Here, 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.

View Accepted Manuscript (DOE)

Research Organization:: Yale Univ., New Haven, CT (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: FG02-08ER46482

OSTI ID:: 1609978

Alternate ID(s):: OSTI ID: 1547972

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 123; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
Landauer formula
Physics
Point contacts
Superconductivity
Transport phenomena

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