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Title: Wave packet dynamics in various two-dimensional systems: A unified description

In this article we present an exact and unified description of wave packet dynamics in various 2D systems in the presence of a transverse magnetic field. We consider an initial minimum-uncertainty Gaussian wave packet and find that its long-term dynamics displays the universal phenomena of spontaneous collapse and quantum revival. We estimate the timescales associated with these phenomena based on very general arguments for various materials, whose carrier dynamics is described either by the Schrödinger equation or by the Dirac equation.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
22447605
Resource Type:
Journal Article
Resource Relation:
Journal Name: Annals of Physics; Journal Volume: 354; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DIRAC EQUATION; L-S COUPLING; MAGNETIC FIELDS; QUANTUM MECHANICS; QUANTUM WELLS; SCHROEDINGER EQUATION; SPIN; TWO-DIMENSIONAL CALCULATIONS; WAVE PACKETS