Measurement-induced nonlocality quantified by Hellinger distance and weak measurements

Indrajith V.S., R. Muthuganesan and R. Sankaranarayanan

Physica A: Statistical Mechanics and its Applications, 2021, vol. 566, issue C

Abstract: In this article, we propose measurement-induced nonlocality (MIN) quantified by Hellinger distance using von Neumann projective measurement. The proposed MIN is a bonafide measure of nonlocal correlation and is resistant to local ancilla problem. We obtain an analytical expression of the Hellinger distance MIN for general pure and 2×n mixed states. In addition to comparing with similar measures, we explore the role of weak measurement in capturing nonlocal correlation.

Keywords: Entanglement; Measurement-Induced Nonlocality; Hellinger distance; Weak measurements; Sequential measurements (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:566:y:2021:i:c:s0378437120309134

DOI: 10.1016/j.physa.2020.125615

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