Detecting entanglement and nonlocality with minimum observable length
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| Pubblicato in: | New Journal of Physics vol. 27, no. 9 (Sep 2025), p. 094503 |
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| Autore principale: | |
| Altri autori: | , |
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IOP Publishing
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| Accesso online: | Citation/Abstract Full Text - PDF |
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| 022 | |a 1367-2630 | ||
| 024 | 7 | |a 10.1088/1367-2630/adfe0e |2 doi | |
| 035 | |a 3247077162 | ||
| 045 | 2 | |b d20250901 |b d20250930 | |
| 100 | 1 | |a Chen, Zhuo |u Institute for Interdisciplinary Information Sciences, Tsinghua University , Beijing 100084, People’s Republic of China | |
| 245 | 1 | |a Detecting entanglement and nonlocality with minimum observable length | |
| 260 | |b IOP Publishing |c Sep 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a Quantum entanglement and nonlocality are foundational to quantum technologies, driving quantum computation, communication, and cryptography innovations. To benchmark the capabilities of these quantum techniques, efficient detection and accurate quantification methods are indispensable. This paper examines the concept ‘detection length’—a metric that quantifies the minimum number of simultaneously measured particles required to detect entanglement or nonlocality. We extend the detection length framework to encompass various entanglement categories and nonlocality phenomena, providing a comprehensive analytical model to determine detection lengths for specified forms of entanglement. Furthermore, we exploit semidefinite programming techniques to design entanglement witnesses and Bell’s inequalities tailored to specific minimal detection lengths, offering an upper bound for detection lengths in given states. By assessing the noise robustness of these witnesses, we demonstrate that witnesses with shorter detection lengths can exhibit superior performance under certain conditions. | |
| 653 | |a Quantum computing | ||
| 653 | |a Semidefinite programming | ||
| 653 | |a Quantum entanglement | ||
| 653 | |a Bell's inequality | ||
| 653 | |a Upper bounds | ||
| 653 | |a Cryptography | ||
| 653 | |a Hypothesis testing | ||
| 700 | 1 | |a Shi, Fei |u QICI Quantum Information and Computation Initiative, School of Computing and Data Science, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region of China, People’s Republic of China | |
| 700 | 1 | |a Zhao, Qi |u QICI Quantum Information and Computation Initiative, School of Computing and Data Science, The University of Hong Kong , Pokfulam Road, Hong Kong Special Administrative Region of China, People’s Republic of China | |
| 773 | 0 | |t New Journal of Physics |g vol. 27, no. 9 (Sep 2025), p. 094503 | |
| 786 | 0 | |d ProQuest |t Publicly Available Content Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3247077162/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3247077162/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |