Tunnelling time of a gaussian wave packet through two potential barriers

• Authors: Vittoria Petrillo , Vladislav Olkhovsky
• Languages of publication: EN

Abstracts

EN

The resonant and non-resonant dynamies of a Gaussian quantum wave packet travelling through a double barrier system is studied as a function of the initial characteristics of the spectrum and of the parameters of the potential. The behaviour of the tunnelling time shows that there are situations where the Hartman effect occurs, while, when the resonances are dominant, and in particular for b>π/Δk (b being the inter-barrier distance and Δk the spectrum width), the tunnelling time becomes very large and the Hartman effect does not take place.

Keywords

EN

Tunneling times; Hartman effect; two barriers; tunnelling; quantum mechanics; 73.40.Gk; 03.65.-w

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2005
• Volume: 3
• Issue: 3
• Pages: 339-350

Dates

published

1 - 9 - 2005

online

1 - 9 - 2005

Contributors

author

Vittoria Petrillo

• Dipartimento di Fisica, Università degli Studi di Milano-INFN-INFM, Via Celoria, 16, Milano, Italy

author

Vladislav Olkhovsky

• Institute for Nuclear Research, Ukrainian Academy of Sciences, Prospect Nauki, 47 252028, Kiev, Ukraine

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Identifiers

DOI

10.2478/BF02475642