Construction of bilinear control Hamiltonians using the series product and quantum feedback

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Abstract

We show that it is possible to construct closed quantum systems governed by a bilinear Hamiltonian depending on an arbitrary input signal. This is achieved by coupling the system to a quantum input field and performing a feedback of the output field back into the system to cancel out the stochastic effects, with the signal being added to the field between these events and later subtracted. Here we assume the zero time-delay limit between the various connections and operations.
Original languageEnglish
Article number52311
JournalPhysical Review A
Volume78
Issue number5
DOIs
Publication statusPublished - 07 Nov 2008

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