Extending the Known Region of Nonlocal Boxes that Collapse Communication Complexity
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2023
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| _version_ | 1866929244646408192 |
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| author | Botteron, Pierre Broadbent, Anne Proulx, Marc-Olivier |
| author_facet | Botteron, Pierre Broadbent, Anne Proulx, Marc-Olivier |
| contents | Non-signalling boxes (NS) are theoretical resources defined by the principle of no-faster-than-light communication. They generalize quantum correlations, and some of them are known to collapse communication complexity (CC). However, this collapse is strongly believed to be unachievable in Nature, so its study provides intuition on which theories are unrealistic. In the present letter, we find a better sufficient condition for a nonlocal box to collapse CC, thus extending the known collapsing region. In some slices of NS, we show this condition coincides with an area outside of an ellipse. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2302_00488 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Extending the Known Region of Nonlocal Boxes that Collapse Communication Complexity Botteron, Pierre Broadbent, Anne Proulx, Marc-Olivier Quantum Physics Information Theory Mathematical Physics Non-signalling boxes (NS) are theoretical resources defined by the principle of no-faster-than-light communication. They generalize quantum correlations, and some of them are known to collapse communication complexity (CC). However, this collapse is strongly believed to be unachievable in Nature, so its study provides intuition on which theories are unrealistic. In the present letter, we find a better sufficient condition for a nonlocal box to collapse CC, thus extending the known collapsing region. In some slices of NS, we show this condition coincides with an area outside of an ellipse. |
| title | Extending the Known Region of Nonlocal Boxes that Collapse Communication Complexity |
| topic | Quantum Physics Information Theory Mathematical Physics |
| url | https://arxiv.org/abs/2302.00488 |