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Method of developing analytical multipartite delocalization measures for mixed W -like states

Author(s): Smyth, Cathal; Scholes, Gregory D.

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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. © 2014 American Physical Society.
Publication Date: Sep-2014
Electronic Publication Date: 11-Sep-2014
Citation: Smyth, Cathal, Scholes, Gregory D. (2014). Method of developing analytical multipartite delocalization measures for mixed -like states. Physical Review A, 90 (3), 10.1103/PhysRevA.90.032312
DOI: doi:10.1103/PhysRevA.90.032312
ISSN: 1050-2947
EISSN: 1094-1622
Pages: 90.3:032312
Type of Material: Journal Article
Journal/Proceeding Title: Physical Review A
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.
Notes: Physical Review A - Atomic, Molecular, and Optical Physics. Volume 90, Issue 3, 2014, Article number 032312.

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