# Quantum continual measurements and a posteriori collapse on CCR

@article{Belavkin1992QuantumCM, title={Quantum continual measurements and a posteriori collapse on CCR}, author={Viacheslav P. Belavkin}, journal={Communications in Mathematical Physics}, year={1992}, volume={146}, pages={611-635} }

A quantum stochastic model for the Markovian dynamics of an open system under the nondemolition unsharp observation which is continuous in time, is given. A stochastic equation for the posterior evolution of a quantum continuously observed system is derived and the spontaneous collapse (stochastically continuous reduction of the wave packet) is described. The quantum Langevin evolution equation is solved for the case of a quasi-free Hamiltonian in the initial CCR algebra with a linear output…

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