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arXiv · 2008.13063

Maximal singlet fraction vs. maximal achievable fidelity as proper entanglement measures

Hermann L. Albrecht Q.·Douglas F. Mundarain
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Abstract

We review some parametric families of 2-qubit states for which concurrence and maximal singlet fraction (MSF) have different and even opposite behaviour. For states considered in this work, maximal achievable fidelity (MAF), a quantity derived by Verstraete and Verschelde in 2003, shows a better agreement with concurrence and complies with important features required to be considered a good entanglement measure.

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Hermann L. Albrecht Q., Douglas F. Mundarain. 2020-08-29. Maximal singlet fraction vs. maximal achievable fidelity as proper entanglement measures. https://arxiv.org/abs/2008.13063

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