Quantum Supearrivals

Abstract

A curious effect is uncovered by calculating the it time evolving probability of reflection of a Gaussian wave packet from a rectangular potential barrier while it is perturbed by reducing its height. A time interval is found during which this probability of reflection is larger (``superarrivals'') than in the unperturbed case. This nonclassical effect can be explained by requiring a wave function to act as a ``field'' through which an action, induced by the perturbation of the boundary condition, propagates at a speed depending upon the rate of reducing the barrier height.

4 new .eps figures added. Majour changes include explanation of superarrivals through dynamical effect induced by perturbing barrier

Cited by in corpus (6)

• Understanding Quantum Superarrivals using the Bohmian model
• On non-linear Schrödinger equations for open quantum systems
• Stochastic Bohmian and Scaled Trajectories
• Time-dependent potential barriers and superarrivals
• Diffraction in time of a confined particle and its Bohmian paths
• Quantum-mechanical effects in a linear time-dependent potential