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Experimental demonstration of quantum overlapping tomography

Experimental demonstration of quantum overlapping tomography
Experimental demonstration of quantum overlapping tomography
Quantum tomography is one of the major challenges of large-scale quantum information research due to the exponential time complexity. In this Letter, we develop and apply a Bayesian state estimation method to experimentally demonstrate quantum overlapping tomography [Phys. Rev. Lett. 124, 100401 (2020)], a scheme intent on characterizing critical information of a many-body quantum system in logarithmic time complexity. By comparing the measurement results of full-state tomography and overlapping tomography, we show that overlapping tomography gives accurate information of the system with much fewer state measurements than full-state tomography.
1079-7114
Yang, Zhengning
1c97690b-bfde-437f-9ec0-0ff2ddbaddca
Ru, Shihao
0944a846-8f8f-4a54-9593-08c35eea3eef
Cao, Lianzhen
53a6a9b9-c6b4-4bae-b5a5-783b4d7ece94
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Gao, Weibo
514e37f9-b5de-4449-86d6-f750708419a9
Yang, Zhengning
1c97690b-bfde-437f-9ec0-0ff2ddbaddca
Ru, Shihao
0944a846-8f8f-4a54-9593-08c35eea3eef
Cao, Lianzhen
53a6a9b9-c6b4-4bae-b5a5-783b4d7ece94
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Gao, Weibo
514e37f9-b5de-4449-86d6-f750708419a9

Yang, Zhengning, Ru, Shihao, Cao, Lianzhen, Zheludev, Nikolay and Gao, Weibo (2023) Experimental demonstration of quantum overlapping tomography. Physical Review Letters, 130, [050804]. (doi:10.1103/PhysRevLett.130.050804).

Record type: Article

Abstract

Quantum tomography is one of the major challenges of large-scale quantum information research due to the exponential time complexity. In this Letter, we develop and apply a Bayesian state estimation method to experimentally demonstrate quantum overlapping tomography [Phys. Rev. Lett. 124, 100401 (2020)], a scheme intent on characterizing critical information of a many-body quantum system in logarithmic time complexity. By comparing the measurement results of full-state tomography and overlapping tomography, we show that overlapping tomography gives accurate information of the system with much fewer state measurements than full-state tomography.

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Experimental demonstration of Quantum Overlapping Tomography
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Accepted/In Press date: 13 January 2023
Published date: 3 February 2023

Identifiers

Local EPrints ID: 500453
URI: http://eprints.soton.ac.uk/id/eprint/500453
DOI: doi:10.1103/PhysRevLett.130.050804
ISSN: 1079-7114
PURE UUID: 8193819a-6510-48b4-8457-07236f2566a2
ORCID for Nikolay Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 30 Apr 2025 16:39
Last modified: 02 May 2025 01:35

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Contributors

Author: Zhengning Yang
Author: Shihao Ru
Author: Lianzhen Cao
Author: Nikolay Zheludev ORCID iD
Author: Weibo Gao

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