Linear quantum trajectories: Applications to continuous projection measurements
Open Access
- 1 April 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 57 (4) , 2301-2310
- https://doi.org/10.1103/physreva.57.2301
Abstract
We present a method for obtaining evolution operators for linear quantum trajectories. We apply this to a number of physical examples of varying mathematical complexity, in which the quantum trajectories describe the continuous projection measurement of physical observables. Using this method we calculate the average conditional uncertainty for the measured observables, being a central quantity of interest in these measurement processes.Keywords
All Related Versions
This publication has 40 references indexed in Scilit:
- Effect of feedback on the decoherence of a Schrödinger-cat state: A quantum trajectory descriptionPhysical Review A, 1996
- Linear stochastic wave equations for continuously measured quantum systemsPhysical Review A, 1994
- Squeezing via feedbackPhysical Review A, 1994
- Interpretation of quantum jump and diffusion processes illustrated on the Bloch spherePhysical Review A, 1993
- Quantum theory of field-quadrature measurementsPhysical Review A, 1993
- Monte Carlo simulation of master equations in quantum optics for vacuum, thermal, and squeezed reservoirsPhysical Review A, 1992
- Phase squeezing using intracavity subharmonic generationOptics Communications, 1991
- Probability-density-functional description of quantum photodetection processesQuantum Optics: Journal of the European Optical Society Part B, 1989
- Quantum Measurements and Stochastic ProcessesPhysical Review Letters, 1984
- On the measurement of a weak classical force coupled to a quantum-mechanical oscillator. I. Issues of principleReviews of Modern Physics, 1980