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Entanglement verification based on SIC-POVM measurement

Jun 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.