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arXiv · 1304.1561

A study of transit times in Dirac tunneling

Stefano De Leo
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Abstract

Based on the Dirac equation, the behavior of relativistic electrons which tunnel a potential barrier of height V0 for incoming energies between V0 and V0+m is studied by using the wave packet formalism. The choice of this incoming energy zone guarantees that only electrons participate to the tunneling process. In the opaque limit, as shown in a previous analysis, the transit velocity is proportional to the barrier width and for relativistic potential tends to a constant value greater than $c$. In this paper, a new numerical study shows a very surprising result: superluminal transmissions are also evident for thin barriers.

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Stefano De Leo. 2013-04-04. A study of transit times in Dirac tunneling. https://doi.org/10.1088/1751-8113/46/15/155306

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