Continuous measurements in quantum systems
arXiv:cond-mat/9711007 · doi:10.1023/A:1012614303550
Abstract
During a continuous measurement, quantum systems can be described by a stochastic Schrödinger equation which, in the appropriate limit, reproduces the von Neumann wave-function collapse. The average behavior on the ensemble of all measurement results is described by a master equation obtained from a general model of measurement apparatus consisting of an infinite set of degrees of freedom linearly interacting with the measured system and in contact with a reservoir at high temperature.
4 pages, presented at the 3rd Euroconference on Atomic Physics with Stored Highly Charged Ions, Ferrara 22-26 September 1997