The Gisin-Percival stochastic Schrödinger equation from standard quantum filtering theory

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Abstract

We show that the quantum state diffusion equation of Gisin and Percival, driven by complex Wiener noise, is equivalent up to a global stochastic phase to quantum trajectory models. With an appropriate feedback scheme, we set up an analog continuous measurement model which exactly simulates the Gisin-Percival quantum state diffusion.
Original languageEnglish
Article number043509
JournalJournal of Mathematical Physics
Volume59
Issue number4
DOIs
Publication statusPublished - 26 Apr 2018

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