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Document type:
Zeitschriftenaufsatz
Author(s):
Elben, Andreas; Kueng, Richard; Huang, Hsin-Yuan (Robert); van Bijnen, Rick; Kokail, Christian; Dalmonte, Marcello; Calabrese, Pasquale; Kraus, Barbara; Preskill, John; Zoller, Peter; Vermersch, Benoît
Title:
Mixed-State Entanglement from Local Randomized Measurements
Abstract:
We propose a method for detecting bipartite entanglement in a many-body mixed state based on estimating moments of the partially transposed density matrix. The estimates are obtained by performing local random measurements on the state, followed by postprocessing using the classical shadows framework. Our method can be applied to any quantum system with single-qubit control. We provide a detailed analysis of the required number of experimental runs, and demonstrate the protocol using existing ex...     »
Journal title:
Phys. Rev. Lett. 125, 200501 2020-11
Year:
2020
Journal volume:
125
Year / month:
2020-11
Quarter:
4. Quartal
Month:
Nov
Journal issue:
20
Language:
en
Fulltext / DOI:
doi:10.1103/physrevlett.125.200501
WWW:
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.200501
Publisher:
American Physical Society (APS)
E-ISSN:
0031-90071079-7114
Date of publication:
11.11.2020
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