Salecker-Wigner-Peres clock and average tunneling times

Autor:	Lunardi, José T., Manzoni, Luiz A., Nystrom, Andrew T.
Rok vydání:	2011
Předmět:	Quantum Physics Physics - Atomic Physics
Zdroj:	Physics Letters A 375 (2011) 415-421
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physleta.2010.11.055
Popis:	The quantum clock of Salecker-Wigner-Peres is used, by performing a post-selection of the final state, to obtain average transmission and reflection times associated to the scattering of localized wave packets by static potentials in one dimension. The behavior of these average times is studied for a gaussian wave packet, centered around a tunneling wave number, incident on a rectangular barrier and, in particular, on a double delta barrier potential. The regime of opaque barriers is investigated and the results show that the average transmission time does not saturate, showing no evidence of the Hartman effect (or its generalized version). Comment: 9 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1108.3037 Zobrazit plný text záznamu View this record from Arxiv