2007/10/17 by G. W. Ford, R. F. O'Connell · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.76.042122
published as Physical Review A, 042122 (2007) · Phys. Rev. A, in press
arxiv created 2007/10/17 · arxiv updated 2009/12/01
The quantum analog of the joint probability distributions describing a classical stochastic process is introduced. A prescription is given for constructing the quantum distribution associated with a sequence of measurements. For the case of quantum Brownian motion this prescription is illustrated with a number of explicit examples. In particular it is shown how the prescription can be extended in the form of a general formula for the Wigner function of a Brownian particle entangled with a heat bath.