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

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Titel: Higher-dimensional symmetric informationally complete measurement via programmable photonic integrated optics
Autoren: Feng, Lan Tian, Hu, Xiao Min, Zhang, Ming, Cheng, Yu Jie, Zhang, Chao, Guo, Yu, Ding, Yu Yang, Hou, Zhibo, Sun, Fang Wen, Guo, Guang Can, Dai, Dao Xin, Tavakoli, Armin, Ren, Xi Feng, Liu, Bi Heng
Weitere Verfasser: Lund University, Profile areas and other strong research environments, Lund University Profile areas, LU Profile Area: Light and Materials, Lunds universitet, Profilområden och andra starka forskningsmiljöer, Lunds universitets profilområden, LU profilområde: Ljus och material, Originator, Lund University, Faculty of Engineering, LTH, LTH Profile areas, LTH Profile Area: Nanoscience and Semiconductor Technology, Lunds universitet, Lunds Tekniska Högskola, LTH profilområden, LTH profilområde: Nanovetenskap och halvledarteknologi, Originator, Lund University, Faculty of Science, Department of Physics, Mathematical Physics, Lunds universitet, Naturvetenskapliga fakulteten, Fysiska institutionen, Matematisk fysik, Originator
Quelle: Optica. 12(7):1014-1019
Schlagwörter: Natural Sciences, Physical Sciences, Condensed Matter Physics (including Material Physics, Nano Physics), Naturvetenskap, Fysik, Den kondenserade materiens fysik (Här ingår: Materialfysik, nanofysik)
Beschreibung: 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.
Zugangs-URL: https://doi.org/10.1364/OPTICA.551264
Datenbank: SwePub
Beschreibung
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 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.
ISSN:23342536
DOI:10.1364/OPTICA.551264