Optimal estimation of two-qubit pure-state entanglement

Preprint

3 November 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/9911008

Abstract

We present optimal measuring strategies for the estimation of the entanglement of unknown two-qubit pure states and of the degree of mixing of unknown single-qubit mixed states, of which N identical copies are available. The most general measuring strategies are considered in both situations, to conclude in the first case that a local, although collective, measurement suffices to estimate entanglement, a non-local property, optimally.

Keywords

MEASURING STRATEGIES
OPTIMAL ESTIMATION
QUBIT PURE STATE
TWO QUBIT PURE

All Related Versions

Version 1, 1999-11-03, ArXiv
Published version: Physical Review A, 61 (6), 062307.

This publication has 0 references indexed in Scilit: