Quantum continual measurements and a posteriori collapse on CCR

  title={Quantum continual measurements and a posteriori collapse on CCR},
  author={Viacheslav P. Belavkin},
  journal={Communications in Mathematical Physics},
  • V. Belavkin
  • Published 1 June 1992
  • Physics
  • Communications in Mathematical Physics
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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