Tunnelling time of a gaussian wave packet through two potential barriers

• Autorzy: Vittoria Petrillo , Vladislav Olkhovsky
• Języki publikacji: EN

Abstrakty

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.

Słowa kluczowe

EN

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

• Czasopismo: Open Physics
• Rocznik: 2005
• Tom: 3
• Numer: 3
• Strony: 339-350

Daty

wydano

2005-09-01

online

2005-09-01

Twórcy

autor

Vittoria Petrillo

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

autor

Vladislav Olkhovsky

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

Bibliografia

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Identyfikatory

DOI

10.2478/BF02475642