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Higher-dimensional symmetric informationally complete measurement via programmable photonic integrated optics

Feng, Lan Tian ; Hu, Xiao Min ; Zhang, Ming ; Cheng, Yu Jie ; Zhang, Chao ; Guo, Yu ; Ding, Yu Yang ; Hou, Zhibo ; Sun, Fang Wen and Guo, Guang Can , et al. (2025) In Optica 12(7). p.1014-1019
Abstract

Symmetric informationally complete measurements are both important building blocks in many quantum information protocols and the seminal example of a generalized, non-orthogonal, and quantum measurement. In higher-dimensional systems, these measurements become both increasingly interesting and increasingly complex to implement. Here, we demonstrate an integrated quantum photonic platform, operating at high fidelities, to realize such a measurement on three-level quantum systems. We demonstrate the quality of the measurement device by verifying a genuine many-outcome quantum measurement, performing near-optimal quantum state discrimination, and beating the projective limit in quantum random number generation. Moreover, the device is... (More)

Symmetric informationally complete measurements are both important building blocks in many quantum information protocols and the seminal example of a generalized, non-orthogonal, and quantum measurement. In higher-dimensional systems, these measurements become both increasingly interesting and increasingly complex to implement. Here, we demonstrate an integrated quantum photonic platform, operating at high fidelities, to realize such a measurement on three-level quantum systems. We demonstrate the quality of the measurement device by verifying a genuine many-outcome quantum measurement, performing near-optimal quantum state discrimination, and beating the projective limit in quantum random number generation. Moreover, the device is programmable and can readily implement other quantum measurements at similarly high quality. Our work paves the way for the implementation of sophisticated higher-dimensional quantum measurements that go beyond the traditional orthogonal projections.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optica
volume
12
issue
7
pages
6 pages
publisher
Optica Publishing Group (formerly OSA)
external identifiers
  • scopus:105011322322
ISSN
2334-2536
DOI
10.1364/OPTICA.551264
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
id
ef5e3259-1fbd-430b-a980-1ae23aa190ad
date added to LUP
2025-12-03 16:04:14
date last changed
2025-12-03 16:04:43
@article{ef5e3259-1fbd-430b-a980-1ae23aa190ad,
  abstract     = {{<p>Symmetric informationally complete measurements are both important building blocks in many quantum information protocols and the seminal example of a generalized, non-orthogonal, and quantum measurement. In higher-dimensional systems, these measurements become both increasingly interesting and increasingly complex to implement. Here, we demonstrate an integrated quantum photonic platform, operating at high fidelities, to realize such a measurement on three-level quantum systems. We demonstrate the quality of the measurement device by verifying a genuine many-outcome quantum measurement, performing near-optimal quantum state discrimination, and beating the projective limit in quantum random number generation. Moreover, the device is programmable and can readily implement other quantum measurements at similarly high quality. Our work paves the way for the implementation of sophisticated higher-dimensional quantum measurements that go beyond the traditional orthogonal projections.</p>}},
  author       = {{Feng, Lan Tian and Hu, Xiao Min and Zhang, Ming and Cheng, Yu Jie and Zhang, Chao and Guo, Yu and Ding, Yu Yang and Hou, Zhibo and Sun, Fang Wen and Guo, Guang Can and Dai, Dao Xin and Tavakoli, Armin and Ren, Xi Feng and Liu, Bi Heng}},
  issn         = {{2334-2536}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{7}},
  pages        = {{1014--1019}},
  publisher    = {{Optica Publishing Group (formerly OSA)}},
  series       = {{Optica}},
  title        = {{Higher-dimensional symmetric informationally complete measurement via programmable photonic integrated optics}},
  url          = {{http://dx.doi.org/10.1364/OPTICA.551264}},
  doi          = {{10.1364/OPTICA.551264}},
  volume       = {{12}},
  year         = {{2025}},
}