Quantum Particle Subject to Impulsive Collisions

Chin. Phys. Lett.

1993, Vol. 10

Issue (11): 641-644 DOI:

Original Articles

Quantum Particle Subject to Impulsive Collisions

CHEN Yongcong

Department of Physics, University of Science and Technology of China, Hefei 230026

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CHEN Yongcong 1993 Chin. Phys. Lett. 10 641-644

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Abstract The effects of strong impulsive collisions on the time evolution of a quantum particle are studied. A general formalism is proposed in which a given collision effectively randomizes the momentum of the particle while leaving the position of the particle unchanged. This is then applied to a damped harmonic oscillator. It is explicitly shown that a Gaussian wave packet approaches equilibrium at t →∞. Relations to macroscopic quantum coherence are discussed.

Keywords: 03.65-w 05.40.+j 74.50.+r

Published: 01 November 1993

PACS:	03.65-w
	05.40.+j
	74.50.+r	(Tunneling phenomena; Josephson effects)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1993/V10/I11/0641

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