Photonic Entanglement and Polarization Nonclassicality: Two Manifestations, One Nature
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arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866913424690118656 |
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| author | Ares, Laura Prasannan, Nidhin Agudelo, Elizabeth Luis, Alfredo Brecht, Benjamin Silberhorn, Christine Sperling, Jan |
| author_facet | Ares, Laura Prasannan, Nidhin Agudelo, Elizabeth Luis, Alfredo Brecht, Benjamin Silberhorn, Christine Sperling, Jan |
| contents | We demonstrate in theory and experiment the strict equivalence between nonclassical polarization and the entanglement of indistinguishable photons, thereby unifying these two phenomena that appear dissimilar at first sight. This allows us to analyze nonclassicality and multi-photon entanglement within the same framework. We experimentally verify this double-sided form of quantumness and its independence from the polarization basis, contrasting other notions of coherence that are highly basis-dependent. Our findings show how nonclassical polarization turns out to be equally resourceful for quantum protocols as entanglement, emphasizing its importance in practical applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_07477 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Photonic Entanglement and Polarization Nonclassicality: Two Manifestations, One Nature Ares, Laura Prasannan, Nidhin Agudelo, Elizabeth Luis, Alfredo Brecht, Benjamin Silberhorn, Christine Sperling, Jan Quantum Physics We demonstrate in theory and experiment the strict equivalence between nonclassical polarization and the entanglement of indistinguishable photons, thereby unifying these two phenomena that appear dissimilar at first sight. This allows us to analyze nonclassicality and multi-photon entanglement within the same framework. We experimentally verify this double-sided form of quantumness and its independence from the polarization basis, contrasting other notions of coherence that are highly basis-dependent. Our findings show how nonclassical polarization turns out to be equally resourceful for quantum protocols as entanglement, emphasizing its importance in practical applications. |
| title | Photonic Entanglement and Polarization Nonclassicality: Two Manifestations, One Nature |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2407.07477 |