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arXiv · 0709.3865

Symmetry-Induced Tunnelling in One-Dimensional Disordered Potentials

E. Diez·F. Izrailev·A. A. Krokhin·A. Rodriguez
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Abstract

A new mechanism of tunnelling at macroscopic distances is proposed for a wave packet localized in one-dimensional disordered potential with mirror symmetry, V(-x)=V(x). Unlike quantum tunnelling through a regular potential barrier, which occurs only at the energies lower then the barrier height, the proposed mechanism of tunnelling 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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E. Diez, F. Izrailev, A. A. Krokhin, A. Rodriguez. 2007-09-25. Symmetry-Induced Tunnelling in One-Dimensional Disordered Potentials. https://doi.org/10.1103/physrevb.78.035118

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