Relation between phase and dwell times for quantum tunneling of a relativistically propagating particle

TL;DR

This paper establishes a clear relationship between phase time and dwell time in relativistic quantum tunneling, enhancing understanding of tunneling delays for relativistically moving particles.

Contribution

It provides the first explicit relation between phase and dwell times in relativistic quantum tunneling, extending non-relativistic results to the relativistic regime.

Findings

Group delay expressed via dwell time and self-interference delay.

Insights into relativistic tunneling phenomenology.

Quantitative relation between phase and dwell times.

Abstract

The general and explicit relation between the phase time and the dwell time for quantum tunneling of a relativistically propagating particle is investigated and quantified. In analogy with previously obtained non-relativistic results, it is shown that the group delay can be described in terms of the dwell time and a self-interference delay. Lessons concerning the phenomenology of the relativistic tunneling are drawn.