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Quantum recurrence; magnetic confinement; Quantum instability wave function

The problem of a free electron periodically kicked by a magnetic field has been solved. The system shows a transition from quantum recurrence to instability at ωT=2 where ω is the Larmor frequency andT is the period of the kick. The existence of recurrent behaviour amounts to the confinement of the electron by magnetic kicking. Since the theory holds for all types of charged particles, it has many practical applications.

A K Sikri¹ M L Narchal¹

1. Department of Physics, Punjabi University, Patiala - 147 002, India

Published

June 1995

Manuscript received

19 October 1994

Manuscript revised

20 January 1995