# A new wave equation for a continuous nondemolition measurement

@article{Belavkin1989ANW, title={A new wave equation for a continuous nondemolition measurement}, author={V. Belavkin}, journal={Physics Letters A}, year={1989}, volume={140}, pages={355-358} }

Abstract A stochastic model for nondemolition continuous measurement in a quantum system is given. It is shown that the posterior dynamics, including a continuous collapse of the wave function, is described by a nonlinear stochastic wave equation. For a particle in an electromagnetic field it reduces to the Schrodinger equation with extra imaginary stochastic potentials.

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