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Article: Efficient Verification of Continuous-Variable Quantum States and Devices without Assuming Identical and Independent Operations

TitleEfficient Verification of Continuous-Variable Quantum States and Devices without Assuming Identical and Independent Operations
Authors
Issue Date2021
PublisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prl/
Citation
Physical Review Letters, 2021, v. 126, p. article no. 240503 How to Cite?
AbstractContinuous-variable quantum information, encoded into infinite-dimensional quantum systems, is a promising platform for the realization of many quantum information protocols, including quantum computation, quantum metrology, quantum cryptography, and quantum communication. To successfully demonstrate these protocols, an essential step is the certification of multimode continuous-variable quantum states and quantum devices. This problem is well studied under the assumption that multiple uses of the same device result in identical and independently distributed (i.i.d.) operations. However, in realistic scenarios, identical and independent state preparation and calls to the quantum devices cannot be generally guaranteed. Important instances include adversarial scenarios and instances of time-dependent and correlated noise. In this Letter, we propose the first set of reliable protocols for verifying multimode continuous-variable entangled states and devices in these non-i.i.d scenarios. Although not fully universal, these protocols are applicable to Gaussian quantum states, non-Gaussian hypergraph states, as well as amplification, attenuation, and purification of noisy coherent states.
Persistent Identifierhttp://hdl.handle.net/10722/308987
ISSN
2023 Impact Factor: 8.1
2023 SCImago Journal Rankings: 3.040
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWu, YD-
dc.contributor.authorBai, G-
dc.contributor.authorChiribella, G-
dc.contributor.authorLiu, N-
dc.date.accessioned2021-12-14T01:39:05Z-
dc.date.available2021-12-14T01:39:05Z-
dc.date.issued2021-
dc.identifier.citationPhysical Review Letters, 2021, v. 126, p. article no. 240503-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/308987-
dc.description.abstractContinuous-variable quantum information, encoded into infinite-dimensional quantum systems, is a promising platform for the realization of many quantum information protocols, including quantum computation, quantum metrology, quantum cryptography, and quantum communication. To successfully demonstrate these protocols, an essential step is the certification of multimode continuous-variable quantum states and quantum devices. This problem is well studied under the assumption that multiple uses of the same device result in identical and independently distributed (i.i.d.) operations. However, in realistic scenarios, identical and independent state preparation and calls to the quantum devices cannot be generally guaranteed. Important instances include adversarial scenarios and instances of time-dependent and correlated noise. In this Letter, we propose the first set of reliable protocols for verifying multimode continuous-variable entangled states and devices in these non-i.i.d scenarios. Although not fully universal, these protocols are applicable to Gaussian quantum states, non-Gaussian hypergraph states, as well as amplification, attenuation, and purification of noisy coherent states.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prl/-
dc.relation.ispartofPhysical Review Letters-
dc.rightsCopyright [2021] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevLett.126.240503].-
dc.titleEfficient Verification of Continuous-Variable Quantum States and Devices without Assuming Identical and Independent Operations-
dc.typeArticle-
dc.identifier.emailWu, YD: yadongwu@hku.hk-
dc.identifier.emailBai, G: gbai@hku.hk-
dc.identifier.emailChiribella, G: giulio@cs.hku.hk-
dc.identifier.authorityChiribella, G=rp02035-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevLett.126.240503-
dc.identifier.pmid34213942-
dc.identifier.scopuseid_2-s2.0-85108712550-
dc.identifier.hkuros330851-
dc.identifier.volume126-
dc.identifier.spagearticle no. 240503-
dc.identifier.epagearticle no. 240503-
dc.identifier.isiWOS:000663310100003-
dc.publisher.placeUnited States-

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