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arXiv · 1702.07295

Symmetric 3 Qubit State Invariants

Alexander Meill·David A. Meyer
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Abstract

For pure symmetric 3-qubit states there are only three algebraically independent entanglement measures; one choice is the pairwise concurrence $\mathcal C$, the 3-tangle $\tau$, and the Kempe invariant $\kappa$. Using a canonical form for symmetric $N$-qubit states derived from their Majorana representation, we derive the explicit achievable region of triples $(\mathcal C,\tau,\kappa)$.

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Alexander Meill, David A. Meyer. 2017-02-23. Symmetric 3 Qubit State Invariants. https://doi.org/10.1103/physreva.96.062310

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