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Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
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
Titel:
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...     »
Zeitschriftentitel:
Phys. Rev. Lett. 125, 200501 2020-11
Jahr:
2020
Band / Volume:
125
Jahr / Monat:
2020-11
Quartal:
4. Quartal
Monat:
Nov
Heft / Issue:
20
Sprache:
en
Volltext / DOI:
doi:10.1103/physrevlett.125.200501
WWW:
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.200501
Verlag / Institution:
American Physical Society (APS)
E-ISSN:
0031-90071079-7114
Publikationsdatum:
11.11.2020
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