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arXiv · 1401.7412

A Method of Developing Analytical Multipartite Delocalization Measures for Mixed W-like States

Cathal Smyth·Gregory D. Scholes
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Abstract

We present a method of developing analytical measures of $k$-partite delocalization in arbitrary $n$-body W-like states, otherwise known as mixed states in the single excitation subspace. These measures calculate the distance of a state to its closest reference state with $k-1$ entanglement. We find that the reference state is determined by the purity of the state undergoing measurement. Measures with up to 6-body delocalization for a 6-body system are derived in full, while an algorithm for general $k$-partite measures is given.

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Cathal Smyth, Gregory D. Scholes. 2014-08-29. A Method of Developing Analytical Multipartite Delocalization Measures for Mixed W-like States. https://doi.org/10.1103/physreva.90.032312

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