Quantum Correlations in Three-Beam Symmetric Gaussian States Accessed via Photon-Number-Resolving Detection and Quantum Universal Invariants
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866917102916468736 |
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| author | Peřina Jr., Jan Sudak, Nazarii Barasiński, Artur Černoch, Antonín |
| author_facet | Peřina Jr., Jan Sudak, Nazarii Barasiński, Artur Černoch, Antonín |
| contents | Quantum correlations of 3-beam symmetric Gaussian states are analyzed using their quantum universal invariants. These invariants, 1-, 2-, and 3-beam purities, are expressed in terms of the beams' intensity moments up to sixth order. The 3-beam symmetric Gaussian states with varying amounts of the noise are experimentally generated using entangled photon pairs from down-conversion, their invariants are determined, and their quantum correlations are quantified. The coexistence of bi- and tripartite entanglement and genuine tripartite entanglement are observed in these states that resemble the noisy GHZ/W states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_11303 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum Correlations in Three-Beam Symmetric Gaussian States Accessed via Photon-Number-Resolving Detection and Quantum Universal Invariants Peřina Jr., Jan Sudak, Nazarii Barasiński, Artur Černoch, Antonín Quantum Physics Quantum correlations of 3-beam symmetric Gaussian states are analyzed using their quantum universal invariants. These invariants, 1-, 2-, and 3-beam purities, are expressed in terms of the beams' intensity moments up to sixth order. The 3-beam symmetric Gaussian states with varying amounts of the noise are experimentally generated using entangled photon pairs from down-conversion, their invariants are determined, and their quantum correlations are quantified. The coexistence of bi- and tripartite entanglement and genuine tripartite entanglement are observed in these states that resemble the noisy GHZ/W states. |
| title | Quantum Correlations in Three-Beam Symmetric Gaussian States Accessed via Photon-Number-Resolving Detection and Quantum Universal Invariants |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2505.11303 |