Parametric resonant enhancement of motional entanglement under optimal control: an analytical study
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866911223715463168 |
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| author | Horovitz, Gad Poddubny, Alexander N. |
| author_facet | Horovitz, Gad Poddubny, Alexander N. |
| contents | We study theoretically continuous-variable entanglement between the motional degrees of freedom of optically trapped massive particles coupled via the Coulomb interaction, in the presence of a feedback control scheme. We perform a detailed analysis of the parametric resonance induced by temporal modulation of the coupling strength, based on the system's coupled nonlinear, nonhomogeneous dynamical equations. Our model accurately reproduces the numerical findings and provides closed-form expressions for the entanglement degree. We demonstrate that a stationary nonequilibrium entangled state is realized as a result of the competition between parametric gain and decoherence. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_18427 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Parametric resonant enhancement of motional entanglement under optimal control: an analytical study Horovitz, Gad Poddubny, Alexander N. Quantum Physics We study theoretically continuous-variable entanglement between the motional degrees of freedom of optically trapped massive particles coupled via the Coulomb interaction, in the presence of a feedback control scheme. We perform a detailed analysis of the parametric resonance induced by temporal modulation of the coupling strength, based on the system's coupled nonlinear, nonhomogeneous dynamical equations. Our model accurately reproduces the numerical findings and provides closed-form expressions for the entanglement degree. We demonstrate that a stationary nonequilibrium entangled state is realized as a result of the competition between parametric gain and decoherence. |
| title | Parametric resonant enhancement of motional entanglement under optimal control: an analytical study |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2510.18427 |