Strong Molecule-Light Entanglement with Molecular Cavity Optomechanics
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arXiv
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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866910970706657280 |
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| author | Yu, Hong-Yun Jiao, Ya-Feng Wang, Jie Li, Feng Yin, Bin Jiang, Tian Liu, Qi-Rui Jing, Hui Wei, Ke |
| author_facet | Yu, Hong-Yun Jiao, Ya-Feng Wang, Jie Li, Feng Yin, Bin Jiang, Tian Liu, Qi-Rui Jing, Hui Wei, Ke |
| contents | We propose a molecular optomechanical platform to generate robust entanglement among bosonic modes-photons, phonons, and plasmons-under ambient conditions. The system integrates an ultrahigh-Q whispering-gallery-mode (WGM) optical resonator with a plasmonic nanocavity formed by a metallic nanoparticle and a single molecule. This hybrid architecture offers two critical advantages over standalone plasmonic systems: (i) Efficient redirection of Stokes photons from the lossy plasmonic mode into the long-lived WGM resonator, and (ii) Suppression of molecular absorption and approaching vibrational ground states via plasmon-WGM interactions. These features enable entanglement to transfer from the fragile plasmon-phonon subsystem to a photon-phonon bipartition in the blue-detuned regime, yielding robust stationary entanglement resilient to environmental noise. Remarkably, the achieved entanglement surpasses the theoretical bound for conventional two-mode squeezing in certain parameter regimes. Our scheme establishes a universal approach to safeguard entanglement in open quantum systems and opens avenues for noise-resilient quantum information technologies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_21227 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Strong Molecule-Light Entanglement with Molecular Cavity Optomechanics Yu, Hong-Yun Jiao, Ya-Feng Wang, Jie Li, Feng Yin, Bin Jiang, Tian Liu, Qi-Rui Jing, Hui Wei, Ke Quantum Physics We propose a molecular optomechanical platform to generate robust entanglement among bosonic modes-photons, phonons, and plasmons-under ambient conditions. The system integrates an ultrahigh-Q whispering-gallery-mode (WGM) optical resonator with a plasmonic nanocavity formed by a metallic nanoparticle and a single molecule. This hybrid architecture offers two critical advantages over standalone plasmonic systems: (i) Efficient redirection of Stokes photons from the lossy plasmonic mode into the long-lived WGM resonator, and (ii) Suppression of molecular absorption and approaching vibrational ground states via plasmon-WGM interactions. These features enable entanglement to transfer from the fragile plasmon-phonon subsystem to a photon-phonon bipartition in the blue-detuned regime, yielding robust stationary entanglement resilient to environmental noise. Remarkably, the achieved entanglement surpasses the theoretical bound for conventional two-mode squeezing in certain parameter regimes. Our scheme establishes a universal approach to safeguard entanglement in open quantum systems and opens avenues for noise-resilient quantum information technologies. |
| title | Strong Molecule-Light Entanglement with Molecular Cavity Optomechanics |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2505.21227 |