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arXiv · 1106.4220

Entanglement classes of symmetric Werner states

David W. Lyons·Scott N. Walck
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Abstract

The symmetric Werner states for $n$ qubits, important in the study of quantum nonlocality and useful for applications in quantum information, have a surprisingly simple and elegant structure in terms of tensor products of Pauli matrices. Further, each of these states forms a unique local unitary equivalence class, that is, no two of these states are interconvertible by local unitary operations.

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David W. Lyons, Scott N. Walck. 2011-12-20. Entanglement classes of symmetric Werner states. https://doi.org/10.1103/physreva.84.042316

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