Quantum Particle Subject to Impulsive Collisions
CHEN Yongcong
Department of Physics, University of Science and Technology of China, Hefei 230026
Quantum Particle Subject to Impulsive Collisions
CHEN Yongcong
Department of Physics, University of Science and Technology of China, Hefei 230026
关键词 ：
03.65-w ,
05.40.+j ,
74.50.+r
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.
Key words ：
03.65-w
05.40.+j
74.50.+r
出版日期: 1993-11-01
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1993, Vol. 10 
