dc.contributor.author |
Villavicencio, J |
|
dc.contributor.author |
García-Calderon, G |
|
dc.date.accessioned |
2011-01-22T10:27:23Z |
|
dc.date.available |
2011-01-22T10:27:23Z |
|
dc.date.issued |
2002 |
|
dc.identifier.issn |
1050-2947 |
|
dc.identifier.uri |
http://hdl.handle.net/11154/1820 |
|
dc.description.abstract |
Analytic solutions to the time-dependent Schrodinger equation for cutoff wave initial conditions are used to investigate the time evolution of the transmitted probability density for tunneling. For a broad range of values of the potential barrier opacity alpha, we find that the probability density exhibits two evolving structures. One refers to the propagation of a forerunner related to a time domain resonance [Phys. Rev. A 64, 0121907 (2001)], while the other consists of a semiclassical propagating wave front. We find a regime where the forerunners are absent, corresponding to positive time delays, and show that this regime is characterized by opacities alpha<alpha(c). The critical opacity alpha(c) is derived from the analytical expression for the delay time, which reflects a link between transient effects in tunneling and the delay time. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
Delay time and tunneling transient phenomena |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
2133 |
|
dc.identifier.doi |
10.1103/PhysRevA.66.032104 |
|
dc.source.novolpages |
66(3) |
|
dc.subject.wos |
Optics |
|
dc.subject.wos |
Physics, Atomic, Molecular & Chemical |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.relation.journal |
Physical Review A |
|