During a continuous measurement, quantum systems can be described by a stochastic Schro ̈dinger 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.
Continuous measurements in quantum systems / Presilla, Carlo; Tambini, U.. - In: HYPERFINE INTERACTIONS. - ISSN 0304-3843. - 114:(1998), pp. 123-126. [10.1023/A:1012614303550]
Continuous measurements in quantum systems
PRESILLA, Carlo;
1998
Abstract
During a continuous measurement, quantum systems can be described by a stochastic Schro ̈dinger 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
