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A New Wave Equation For a Continuous Nondemolition Measurement

V. P. Belavkin
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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 the Schroedinger equation with extra imaginary stochastic potentials.

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V. P. Belavkin. 2005-12-17. A New Wave Equation For a Continuous Nondemolition Measurement. https://arxiv.org/abs/quant-ph/0512136

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