Southwest Quantum Information and TechnologyEleventh Annual Meeting, February 19-22, 2009
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All Abstracts | Poster Abstracts | Talk Abstracts | Tutorial Abstracts Entanglement verification based on SIC-POVM measurementJun Yin, University of Oregon (Session 5 : Friday from 5:00-7:00) Abstract. Maximum likelihood estimation and Bayesian methods are applied and compared to acquire certain properties (e.g., purity and entanglement) of a four-qubit system from finite measurement records. In particular, we assume a SIC-POVM is measured on each qubit. We tentatively propose a criterion for the number of SIC-POVM measurements needed to obtain reliable estimates of purity, the amount of multi-partite entanglement, and whether the state is entangled or not. |