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Coherent-Classical Estimation for Quantum Linear Systems (1309.0578v2)
Published 3 Sep 2013 in quant-ph, cs.SY, and math.OC
Abstract: This paper introduces a problem of coherent-classical estimation for a class of linear quantum systems. In this problem, the estimator is a mixed quantum-classical system which produces a classical estimate of a system variable. The coherent-classical estimator may also involve coherent feedback. An example involving optical squeezers is given to illustrate the efficacy of this idea.