Optimal Monitoring of Position in Nonlinear Quantum Systems

Abstract

We discuss a model of repeated measurements of position in a quantum system which is monitored for a finite amount of time with a finite instrumental error. In this framework we recover the optimum monitoring of a harmonic oscillator proposed in the case of an instantaneous collapse of the wavefunction into an infinite-accuracy measurement result. We also establish numerically the existence of an optimal measurement strategy in the case of a nonlinear system. This optimal strategy is completely defined by the spectral properties of the nonlinear system.

4 pages, REVTeX 3.0, 4 PostScript figures

References in corpus (1)

• Continuous Quantum Monitoring of Position of Nonlinear Oscillators

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