Enhanced Estimation of a Noisy Quantum Channel Using Entanglement

Preprint

29 March 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0103160

Abstract

We discuss the estimation of channel parameters for a noisy quantum channel - the so-called Pauli channel - using finite resources. It turns out that prior entanglement considerably enhances the fidelity of the estimation when we compare it to an estimation scheme based on separable quantum states.

Keywords

ENTANGLEMENT CONSIDERABLY
NOISY QUANTUM CHANNEL
ESTIMATION OF CHANNEL
ENHANCED ESTIMATION
USING ENTANGLEMENT
QUANTUM CHANNEL
PAULI CHANNEL

All Related Versions

Version 1, 2001-03-29, ArXiv
Published version: Physical Review A, 64 (2), 022309.

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