General relation between density of states and dwell times in mesoscopic systems
- 15 February 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 51 (7) , 4727-4729
- https://doi.org/10.1103/physrevb.51.4727
Abstract
A relevant relation between the dwell time and the density of states for a three-dimensional system of arbitrary shape with an arbitrary number of incoming channels is derived. This result extends the one obtained by Gasparian and co-workers for the case of a one-dimensional symmetrical potential barrier. We believe that such a strong relation is rich in physical significance because the dwell time is the most widely accepted time measure of a particle’s dynamics and the density of states in a given region is one of the most relevant properties of a system in equilibrium.Keywords
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This publication has 8 references indexed in Scilit:
- Characteristic times in the motion of a particlePhysical Review B, 1994
- Quantum interference and determination of the traversal timePhysical Review A, 1993
- Büttiker-Landauer characteristic barrier-interaction times for one-dimensional random layered systemsPhysical Review B, 1993
- Recent developments in the time analysis of tunneling processesPhysics Reports, 1992
- Dwell time and phase times for transmission and reflectionPhysical Review B, 1989
- Time delay in tunneling: Transmission and reflection time delaysPhysical Review A, 1988
- Traversal time in quantum scatteringPhysical Review A, 1987
- Larmor precession and the traversal time for tunnelingPhysical Review B, 1983