Coherent phase control of two-color continuous variable entangled light
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866908479248138240 |
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| author | Grimaldi, Andrea Novikov, Valeriy Brasil, Túlio Brito Polzik, Eugene Simon |
| author_facet | Grimaldi, Andrea Novikov, Valeriy Brasil, Túlio Brito Polzik, Eugene Simon |
| contents | A continuous variable Einstein-Podolsky-Rosen (EPR) state is a resource for secure quantum communication and distributed quantum sensing. Here we present a technique for coherent control of the two-color EPR state generated by a frequency nondegenerate optical parametric oscillator. The scheme allows for robust control of the homodyne detection of each of the two EPR quantum fields separated by 200 nanometers. We apply our control scheme to stabilize and characterize a strong entangled state of two-color light displaying 9 dB of two-mode squeezing in the acoustic frequency range, making it a valuable tool for quantum networking and quantum metrology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_03303 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Coherent phase control of two-color continuous variable entangled light Grimaldi, Andrea Novikov, Valeriy Brasil, Túlio Brito Polzik, Eugene Simon Quantum Physics Optics A continuous variable Einstein-Podolsky-Rosen (EPR) state is a resource for secure quantum communication and distributed quantum sensing. Here we present a technique for coherent control of the two-color EPR state generated by a frequency nondegenerate optical parametric oscillator. The scheme allows for robust control of the homodyne detection of each of the two EPR quantum fields separated by 200 nanometers. We apply our control scheme to stabilize and characterize a strong entangled state of two-color light displaying 9 dB of two-mode squeezing in the acoustic frequency range, making it a valuable tool for quantum networking and quantum metrology. |
| title | Coherent phase control of two-color continuous variable entangled light |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2508.03303 |