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

Journal Article · Sun Mar 15 00:00:00 EDT 2015 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2014.12.019· OSTI ID:22447605

Singh, Ashutosh; Biswas, Tutul; Ghosh, Tarun Kanti; Agarwal, Amit

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.

• OSTI ID: 22447605
• Journal Information: Annals of Physics, Vol. 354; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

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