Quantum estimation of a damping constant

Abstract

We discuss an interferometric approach to the estimation of quantum mechanical damping. We study specific classes of entangled and separable probe states consisting of superpositions of coherent states. Based on the assumption of limited quantum resources we show that entanglement improves the estimation of an unknown damping constant.

7 pages, 5 figures

References in corpus (4)

• Inseparability criterion for continuous variable systems
• Quantum Interferometric Optical Lithography: Exploiting Entanglement to Beat The Diffraction Limit
• On the Improvement of Frequency Stardards with Quantum Entanglement
• Cavity Loss Induced Generation of Entangled Atoms

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