Unified Scaling Theory of the Electron Box for Arbitrary Tunneling Strength

G. Falci, Gerd Schön, and Gergely T. Zimanyi
Phys. Rev. Lett. 74, 3257 – Published 17 April 1995
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Abstract

Electron tunneling leads to screening of the charge of small islands. Theeffect is strongest near degeneracy points of the charging energy. In orderto describe the low energy physics of strong tunneling we introduce atwo-stage scaling theory. In this unified theory several contradictingearlier descriptions find a natural interpretation. Nonperturbative expressionsare derived for the energy levels, decay rates, and charge of the island.The strong renormalization of the effective capacitance of the junction isconfirmed by Monte Carlo simulations.

  • Received 24 May 1994

DOI:https://doi.org/10.1103/PhysRevLett.74.3257

©1995 American Physical Society

Authors & Affiliations

G. Falci1,2, Gerd Schön1, and Gergely T. Zimanyi3

  • 1Institut für Theoretische Festkörperphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany
  • 2Istituto di Fisica, Viale A. Doria 6, 95125 Catania, Italy
  • 3Department of Physics, University of California, Davis, California 95616

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Issue

Vol. 74, Iss. 16 — 17 April 1995

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