Symmetry-induced tunneling in one-dimensional disordered potentials

E. Diez, F. Izrailev, A. Krokhin, and A. Rodriguez
Phys. Rev. B 78, 035118 – Published 17 July 2008

Abstract

A nontraditional mechanism of tunneling at macroscopic distances is proposed for a wave packet localized in a one-dimensional disordered potential with mirror symmetry, V(x)=V(x). Unlike quantum tunneling through a regular potential barrier, which occurs only at the energies lower than the barrier height, the proposed mechanism of tunneling exists even for weak white-noise-like scattering potentials. It also exists in classical circuits of resonant contours with random resonant frequencies. The latter property may be used as a new method of secure communication, which does not require coding and decoding of the transmitting signal.

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  • Received 8 April 2008

DOI:https://doi.org/10.1103/PhysRevB.78.035118

©2008 American Physical Society

Authors & Affiliations

E. Diez1, F. Izrailev2, A. Krokhin3, and A. Rodriguez1,4

  • 1Departamento de Física Fundamental, Universidad de Salamanca, Salamanca E-37008, Spain
  • 2Instituto de Física, Universidad Autónoma de Puebla, Apartado Postal J-48, Puebla 72570, Mexico
  • 3Department of Physics, University of North Texas, P.O. Box 311427, Denton, Texas 76203, USA
  • 4Department of Physics and Centre for Scientific Computing, University of Warwick, Coventry CV4 7AL, United Kingdom

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Issue

Vol. 78, Iss. 3 — 15 July 2008

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