Cyclic measurements and simplified quantum state tomography

2025
journal article
article
2
dc.abstract.enTomographic reconstruction of quantum states plays a fundamental role in benchmarking quantum systems and accessing information encoded in quantum-mechanical systems. Among the informationally complete sets of quantum measurements, the tight ones provide a linear reconstruction formula and minimize the propagation of statistical errors. However, implementing tight measurements in the lab is challenging due to the high number of required measurement projections, involving a series of experimental setup preparations. In this work, we introduce the notion of cyclic tight measurements, which allow us to perform full quantum state tomography while considering only repeated application of a single unitary-based quantum device during the measurement stage. This type of measurement significantly simplifies the complexity of the experimental setup required to retrieve the quantum state of a physical system. Additionally, we design a feasible setup preparation procedure that produces well-approximated cyclic tight measurements in every finite dimension.
dc.affiliationSzkoła Doktorska Nauk Ścisłych i Przyrodniczych
dc.contributor.authorGonzalez Avella, Victor
dc.contributor.authorCzartowski, Jakub - 260633
dc.contributor.authorGoyeneche, Dardo
dc.contributor.authorŻyczkowski, Karol - 132981
dc.date.accessioned2025-11-28T14:44:39Z
dc.date.available2025-11-28T14:44:39Z
dc.date.createdat2025-11-19T08:12:37Zen
dc.date.issued2025
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.versionostateczna wersja wydawcy
dc.description.volume9
dc.identifier.articleid1763
dc.identifier.doi10.22331/q-2025-06-04-1763
dc.identifier.eissn2521-327X
dc.identifier.issn2521-327X
dc.identifier.projectDRC AI
dc.identifier.urihttps://ruj.uj.edu.pl/handle/item/566299
dc.languageeng
dc.language.containereng
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.typeotwarte czasopismo
dc.source.integratorfalse
dc.subtypeArticle
dc.titleCyclic measurements and simplified quantum state tomography
dc.title.journalQuantum
dc.typeJournalArticle
dspace.entity.typePublicationen
dc.abstract.en
Tomographic reconstruction of quantum states plays a fundamental role in benchmarking quantum systems and accessing information encoded in quantum-mechanical systems. Among the informationally complete sets of quantum measurements, the tight ones provide a linear reconstruction formula and minimize the propagation of statistical errors. However, implementing tight measurements in the lab is challenging due to the high number of required measurement projections, involving a series of experimental setup preparations. In this work, we introduce the notion of cyclic tight measurements, which allow us to perform full quantum state tomography while considering only repeated application of a single unitary-based quantum device during the measurement stage. This type of measurement significantly simplifies the complexity of the experimental setup required to retrieve the quantum state of a physical system. Additionally, we design a feasible setup preparation procedure that produces well-approximated cyclic tight measurements in every finite dimension.
dc.affiliation
Szkoła Doktorska Nauk Ścisłych i Przyrodniczych
dc.contributor.author
Gonzalez Avella, Victor
dc.contributor.author
Czartowski, Jakub - 260633
dc.contributor.author
Goyeneche, Dardo
dc.contributor.author
Życzkowski, Karol - 132981
dc.date.accessioned
2025-11-28T14:44:39Z
dc.date.available
2025-11-28T14:44:39Z
dc.date.createdaten
2025-11-19T08:12:37Z
dc.date.issued
2025
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.version
ostateczna wersja wydawcy
dc.description.volume
9
dc.identifier.articleid
1763
dc.identifier.doi
10.22331/q-2025-06-04-1763
dc.identifier.eissn
2521-327X
dc.identifier.issn
2521-327X
dc.identifier.project
DRC AI
dc.identifier.uri
https://ruj.uj.edu.pl/handle/item/566299
dc.language
eng
dc.language.container
eng
dc.rights
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.source.integrator
false
dc.subtype
Article
dc.title
Cyclic measurements and simplified quantum state tomography
dc.title.journal
Quantum
dc.type
JournalArticle
dspace.entity.typeen
Publication
Affiliations

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