Using entanglement for quantum-optimal loss estimation

Ranjith Nair

doi:10.1364/QIM.2019.S1A.3

Quantum Information and Measurement (QIM) V: Quantum Technologies
OSA Technical Digest (Optica Publishing Group, 2019),
paper S1A.3
•https://doi.org/10.1364/QIM.2019.S1A.3

Using entanglement for quantum-optimal loss estimation

Ranjith Nair

Quantum Information and Measurement 2019

Rome Italy
4–6 April 2019
ISBN: 978-1-943580-56-9

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Quantum information II (S1A)

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R. Nair, "Using entanglement for quantum-optimal loss estimation," in Quantum Information and Measurement (QIM) V: Quantum Technologies, OSA Technical Digest (Optica Publishing Group, 2019), paper S1A.3.

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Abstract

We study ancilla-assisted schemes for estimating multiple optical loss parameters under energy constraints and derive an optimal class of probe states and quantum measurements. Probes and measurements realizable using current technology are also presented.

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