Towards experimental demonstration of quantum position verification using true single photons
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914028316524544 |
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| author | Kanneworff, Kirsten Poortvliet, Mio Bouwmeester, Dirk Allerstorfer, Rene Lunel, Philip Verduyn Speelman, Florian Buhrman, Harry Steindl, Petr Löffler, Wolfgang |
| author_facet | Kanneworff, Kirsten Poortvliet, Mio Bouwmeester, Dirk Allerstorfer, Rene Lunel, Philip Verduyn Speelman, Florian Buhrman, Harry Steindl, Petr Löffler, Wolfgang |
| contents | The geographical position can be a good credential for authentication of a party, this is the basis of position-based cryptography - but classically this cannot be done securely without physical exchange of a private key. However, recently, it has been shown that by combining quantum mechanics with the speed of light limit of special relativity, this might be possible: quantum position verification. Here we demonstrate experimentally a protocol that uses two-photon Hong-Ou-Mandel interference at a beamsplitter, which, in combination with two additional beam splitters and 4 detectors is rendering the protocol resilient to loss. With this we are able to show first results towards an experimental demonstration of quantum position verification. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_04125 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Towards experimental demonstration of quantum position verification using true single photons Kanneworff, Kirsten Poortvliet, Mio Bouwmeester, Dirk Allerstorfer, Rene Lunel, Philip Verduyn Speelman, Florian Buhrman, Harry Steindl, Petr Löffler, Wolfgang Quantum Physics Optics The geographical position can be a good credential for authentication of a party, this is the basis of position-based cryptography - but classically this cannot be done securely without physical exchange of a private key. However, recently, it has been shown that by combining quantum mechanics with the speed of light limit of special relativity, this might be possible: quantum position verification. Here we demonstrate experimentally a protocol that uses two-photon Hong-Ou-Mandel interference at a beamsplitter, which, in combination with two additional beam splitters and 4 detectors is rendering the protocol resilient to loss. With this we are able to show first results towards an experimental demonstration of quantum position verification. |
| title | Towards experimental demonstration of quantum position verification using true single photons |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2502.04125 |