Entanglement verification using local unitary stabilizers

Abstract

Local unitary stabilizer subgroups constitute powerful invariants for distinguishing various types of multipartite entanglement. In this paper, we show how stabilizers can be used as a basis for entanglement verification protocols on distributed quantum networks using minimal resources. As an example, we develop and analyze the performance of a protocol to verify membership in the space of Werner states, that is, multi-qubit states that are invariant under the action of any 1-qubit unitary applied to all the qubits.

4 pages, version 2 with minor edits, close to final published version

References in corpus (6)

• On experimental procedures for entanglement verification
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• Multiparty quantum states stabilized by the diagonal subgroup of the local unitary group
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• Werner state structure and entanglement classification

Cited by in corpus (1)

• Local unitary symmetries and entanglement invariants