Wigner function approach to single-electron tunneling

Sangchul Oh, Jong Son Lyu, Bowoo Kim, Hyung Joun Yoo, Sang Il Choi

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Abstract

The Wigner function formalism is applied in describing the charge dynamics of an ultrasmall tunnel junction and (normal or superconducting) single-electron transistors. Master equations for the Wigner function of both cases, the single-electron tunnel junction and the single-electron transistor, are obtained in the semiclassical approximation. The obtained master equations include quasiparticle tunneling, quasiparticle-pair interference tunneling, and Cooper-pair tunneling. For the normal tunnel junction or the normal single-electron transistor, the master equations for the Wigner function are reduced to the master equations for the classical probability density of the so-called orthodox theory.

Original languageEnglish
Pages (from-to)163-167
Number of pages5
JournalJournal of the Korean Physical Society
Volume31
Issue number1
Publication statusPublished - 1997
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Oh, S., Lyu, J. S., Kim, B., Yoo, H. J., & Choi, S. I. (1997). Wigner function approach to single-electron tunneling. Journal of the Korean Physical Society, 31(1), 163-167.