Engineering Graph States of Atomic Ensembles by Photon-Mediated Entanglement
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| Acceso en línea: | |
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| _version_ | 1866909260262146048 |
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| author | Cooper, Eric S. Kunkel, Philipp Periwal, Avikar Schleier-Smith, Monika |
| author_facet | Cooper, Eric S. Kunkel, Philipp Periwal, Avikar Schleier-Smith, Monika |
| contents | Graph states are versatile resources for quantum computation and quantum-enhanced measurement. Their generation illustrates a high level of control over entanglement. We report on the generation of continuous-variable graph states of atomic spin ensembles, which form the nodes of the graph. The edges represent the entanglement structure, which we program by combining global photon-mediated interactions in an optical cavity with local spin rotations. By tuning the entanglement between two subsystems, we either localize correlations within each subsystem or enable Einstein-Podolsky-Rosen steering. We further engineer a four-mode square graph state, highlighting the flexibility of our approach. Our method is scalable to larger and more complex graphs, laying groundwork for measurement-based quantum computation and advanced protocols in quantum metrology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_11961 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Engineering Graph States of Atomic Ensembles by Photon-Mediated Entanglement Cooper, Eric S. Kunkel, Philipp Periwal, Avikar Schleier-Smith, Monika Quantum Physics Quantum Gases Atomic Physics Graph states are versatile resources for quantum computation and quantum-enhanced measurement. Their generation illustrates a high level of control over entanglement. We report on the generation of continuous-variable graph states of atomic spin ensembles, which form the nodes of the graph. The edges represent the entanglement structure, which we program by combining global photon-mediated interactions in an optical cavity with local spin rotations. By tuning the entanglement between two subsystems, we either localize correlations within each subsystem or enable Einstein-Podolsky-Rosen steering. We further engineer a four-mode square graph state, highlighting the flexibility of our approach. Our method is scalable to larger and more complex graphs, laying groundwork for measurement-based quantum computation and advanced protocols in quantum metrology. |
| title | Engineering Graph States of Atomic Ensembles by Photon-Mediated Entanglement |
| topic | Quantum Physics Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2212.11961 |