Infrared divergence in single-electron tunneling

Masahito Ueda*, Susumu Kurihara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In small-capacitance normal tunnel junctions, even a single-electron tunneling causes a substantial change in the localized Coulomb potential. If the perturbation may be regarded as static, Fermi liquid theory requires that infinitely many electron-hole pairs should be excited near the Fermi surface. It is shown that such infrared divergence leads to a power-law anomaly in tunneling conductance. Possible experimental situations to observe this effect are discussed.

Original languageEnglish
Pages (from-to)12568-12572
Number of pages5
JournalPhysical Review B
Issue number19
Publication statusPublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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