Self-testing quantum states via nonmaximal violation in Hardy's
test of nonlocality

J 2022

Self-testing quantum states via nonmaximal violation in Hardy's test of nonlocality

RAI, Ashutosh, Matej PIVOLUSKA, Souradeep SASMAL, Manik BANIK, Sibasish GHOSH et. al.

Basic information

Original name

Self-testing quantum states via nonmaximal violation in Hardy's test of nonlocality

Authors

RAI, Ashutosh, Matej PIVOLUSKA (703 Slovakia, guarantor, belonging to the institution), Souradeep SASMAL, Manik BANIK, Sibasish GHOSH and Martin PLESCH (703 Slovakia, belonging to the institution)

Edition

PHYSICAL REVIEW A, UNITED STATES, AMER PHYSICAL SOC, 2022, 2469-9926

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10306 Optics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 2.900

RIV identification code

RIV/00216224:14610/22:00125966

Organization unit

Institute of Computer Science

DOI

http://dx.doi.org/10.1103/PhysRevA.105.052227

UT WoS

000817039700009

Keywords in English

non-locality; entanglement; Hardy non-locality; self-testing; device-independence

Abstract

V originále

Self-testing protocols enable the certification of quantum devices without demanding full knowledge about their inner workings. A typical approach in designing such protocols is based on observing nonlocal correlations which exhibit maximum violation in a Bell test. We show that in the Bell experiment known as Hardy's test of nonlocality, not only does the maximally nonlocal correlation self-test a quantum state, rather a nonmaximal nonlocal behavior can serve the same purpose. We, in fact, completely characterize all such behaviors leading to a self-test of every pure two-qubit entangled state except for the maximally entangled ones. Apart from presenting an alternative self-testing protocol, our method provides a powerful tool towards characterizing the complex boundary of the set of quantum correlations.

Links

MUNI/G/1596/2019, interní kód MU

Name: Development of algorithms for application of quantum computers in electronic-structure calculations in solid-state physics and chemistry (Acronym: Qubits4PhysChem)

Investor: Masaryk University, INTERDISCIPLINARY - Interdisciplinary research projects

Citovat

RAI, Ashutosh, Matej PIVOLUSKA, Souradeep SASMAL, Manik BANIK, Sibasish GHOSH and Martin PLESCH. Self-testing quantum states via nonmaximal violation in Hardy's test of nonlocality. PHYSICAL REVIEW A. UNITED STATES: AMER PHYSICAL SOC, 2022, vol. 105, No 5, p. 1-8. ISSN 2469-9926. Available from: https://dx.doi.org/10.1103/PhysRevA.105.052227.

@article{1859044,
   author = {Rai, Ashutosh and Pivoluska, Matej and Sasmal, Souradeep and Banik, Manik and Ghosh, Sibasish and Plesch, Martin},
   article_location = {UNITED STATES},
   article_number = {5},
   doi = {http://dx.doi.org/10.1103/PhysRevA.105.052227},
   keywords = {non-locality; entanglement; Hardy non-locality; self-testing; device-independence},
   language = {eng},
   issn = {2469-9926},
   journal = {PHYSICAL REVIEW A},
   title = {Self-testing quantum states via nonmaximal violation in Hardy's test of nonlocality},
   url = {https://journals.aps.org/pra/abstract/10.1103/PhysRevA.105.052227},
   volume = {105},
   year = {2022}
}

TY  - JOUR
ID  - 1859044
AU  - Rai, Ashutosh - Pivoluska, Matej - Sasmal, Souradeep - Banik, Manik - Ghosh, Sibasish - Plesch, Martin
PY  - 2022
TI  - Self-testing quantum states via nonmaximal violation in Hardy's test of nonlocality
JF  - PHYSICAL REVIEW A
VL  - 105
IS  - 5
SP  - 1-8
EP  - 1-8
PB  - AMER PHYSICAL SOC
SN  - 24699926
KW  - non-locality
KW  - entanglement
KW  - Hardy non-locality
KW  - self-testing
KW  - device-independence
UR  - https://journals.aps.org/pra/abstract/10.1103/PhysRevA.105.052227
N2  - Self-testing protocols enable the certification of quantum devices without demanding full knowledge about their inner workings. A typical approach in designing such protocols is based on observing nonlocal correlations which exhibit maximum violation in a Bell test. We show that in the Bell experiment known as Hardy's test of nonlocality, not only does the maximally nonlocal correlation self-test a quantum state, rather a nonmaximal nonlocal behavior can serve the same purpose. We, in fact, completely characterize all such behaviors leading to a self-test of every pure two-qubit entangled state except for the maximally entangled ones. Apart from presenting an alternative self-testing protocol, our method provides a powerful tool towards characterizing the complex boundary of the set of quantum correlations.
ER  -

RAI, Ashutosh, Matej PIVOLUSKA, Souradeep SASMAL, Manik BANIK, Sibasish GHOSH and Martin PLESCH. Self-testing quantum states via nonmaximal violation in Hardy's test of nonlocality. \textit{PHYSICAL REVIEW A}. UNITED STATES: AMER PHYSICAL SOC, 2022, vol.~105, No~5, p.~1-8. ISSN~2469-9926. Available from: https://dx.doi.org/10.1103/PhysRevA.105.052227.

Detailed Information on Publication Record