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August 3, 2022

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Calculating Concentratable Entanglement in Graph States

A.R. Cullen, P. Kok

Submitted to arXiv on 25 July 2022

We propose a method to calculate the purity of reduced states of graph states entirely within the stabilizer formalism, using only the stabilizer generators for a given state. We apply this method to find the Concentratable Entanglement of graph states, with examples including a single qubit within any graph state, states proposed for use in quantum repeaters and states that maximise and minimise the overall Concentratable Entanglement.

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