English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Quantum versus classical dynamics in a driven barrier: The role of kinematic effects

Papachristou, P. K., Katifori, E., Diakonos, F. K., Constantoudis, V., & Mavrommatis, E. (2012). Quantum versus classical dynamics in a driven barrier: The role of kinematic effects. Physical Review E, 86(3): 036213. doi:10.1103/PhysRevE.86.036213.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1083-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1084-1
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Papachristou, P. K., Author
Katifori, Eleni1, Author              
Diakonos, F. K., Author
Constantoudis, V., Author
Mavrommatis, E., Author
Affiliations:
1Max Planck Research Group Physics of Biological Organization, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063293              

Content

show
hide
Free keywords: -
 Abstract: We study the dynamics of the classical and quantum mechanical scattering of a wave packet from an oscillating barrier. Our main focus is on the dependence of the transmission coefficient on the initial energy of the wave packet for a wide range of oscillation frequencies. The behavior of the quantum transmission coefficient is affected by tunneling phenomena, resonances, and kinematic effects emanating from the time dependence of the potential. We show that when kinematic effects dominate (mainly in intermediate frequencies), classical mechanics provides very good approximation of quantum results. In that frequency region, the classical and quantum transmission coefficients are in optimal agreement. Moreover, the transmission threshold (i.e., the energy above which the transmission coefficient becomes larger than a specific small threshold value) is found to exhibit a minimum. We also consider the form of the transmitted wave packet and we find that for low values of the frequency the incoming classical and quantum wave packet can be split into a train of well-separated coherent pulses, a phenomenon that admits purely classical kinematic interpretation.

Details

show
hide
Language(s): eng - English
 Dates: 2012-09-24
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review E
  Alternative Title : Phys. Rev. E
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 86 (3) Sequence Number: 036213 Start / End Page: - Identifier: -