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Measurements of semi-local and non-maximally entangled states

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arxiv quant-ph/0111012 v2 pith:TZEEUEEB submitted 2001-11-01 quant-ph

Measurements of semi-local and non-maximally entangled states

classification quant-ph
keywords measurablemeasurementsobservablesapplyingargueassistedbecomebipartite
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Consistency with relativistic causality narrows down dramatically the class of measurable observables. We argue that by weakening the preparation role of ideal measurements, many of these observables become measurable. Particularly, we show by applying entanglement assisted remote operations, that all Hermitian observable of a $2\times2$-dimensional bipartite system are measurable.

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  1. Uncountably many inequivalent maximally entangled measurements for two qutrits

    quant-ph 2026-07 conditional novelty 7.0

    There are uncountably many locally inequivalent maximally entangled measurement bases for two qutrits, constructed from qutrit SICs, including the first wild error bases in dimension 3.