Binarisation-loophole-free observation of high-dimensional quantum nonlocality
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2026
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866912802968436736 |
|---|---|
| author | Miao, Jia-le Svegborn, Elna Chen, Zhuo Guo, Yu Hu, Xiao-Min Huang, Yun-Feng Li, Chuan-Feng Guo, Guang-Can Tavakoli, Armin Liu, Bi-Heng |
| author_facet | Miao, Jia-le Svegborn, Elna Chen, Zhuo Guo, Yu Hu, Xiao-Min Huang, Yun-Feng Li, Chuan-Feng Guo, Guang-Can Tavakoli, Armin Liu, Bi-Heng |
| contents | Bell inequality tests based on high-dimensional entanglement usually require measurements that can resolve multiple possible outcomes. However, the implementation of high-dimensional multi-outcome measurements is often only emulated via a collection of ``click or no-click'' measurements. This reduction of multi-outcome measurements to binary-outcome measurements opens a loophole in high-dimensional tests Bell inequalities which can be exploited by local hidden variable models [Tavakoli et al., Phys. Rev. A 111, 042433 (2025)]. Here, we close this loophole by using four-dimensional photonic path-mode entanglement and multi-outcome detection. We test both the well-known Collins-Gisin-Linden-Massar-Popescu inequality and a related Bell inequality tailored for maximally entangled states in high-dimension. We observe violations that are large enough to also rule out any quantum model based on entanglement of lower dimension, thereby demonstrating genuinely high-dimensional nonlocality free of the binarisation loophole. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_02350 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Binarisation-loophole-free observation of high-dimensional quantum nonlocality Miao, Jia-le Svegborn, Elna Chen, Zhuo Guo, Yu Hu, Xiao-Min Huang, Yun-Feng Li, Chuan-Feng Guo, Guang-Can Tavakoli, Armin Liu, Bi-Heng Quantum Physics Bell inequality tests based on high-dimensional entanglement usually require measurements that can resolve multiple possible outcomes. However, the implementation of high-dimensional multi-outcome measurements is often only emulated via a collection of ``click or no-click'' measurements. This reduction of multi-outcome measurements to binary-outcome measurements opens a loophole in high-dimensional tests Bell inequalities which can be exploited by local hidden variable models [Tavakoli et al., Phys. Rev. A 111, 042433 (2025)]. Here, we close this loophole by using four-dimensional photonic path-mode entanglement and multi-outcome detection. We test both the well-known Collins-Gisin-Linden-Massar-Popescu inequality and a related Bell inequality tailored for maximally entangled states in high-dimension. We observe violations that are large enough to also rule out any quantum model based on entanglement of lower dimension, thereby demonstrating genuinely high-dimensional nonlocality free of the binarisation loophole. |
| title | Binarisation-loophole-free observation of high-dimensional quantum nonlocality |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2601.02350 |