双光子驱动非线性量子光学系统中的非平衡能量输运与涨落
Nonequilibrium energy transport and fluctuations in two-photon-driven nonlinear quantum optical systems
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中文总结 AI 辅助
本研究通过驱动量子主方程与全计数统计，揭示双光子驱动下Kerr谐振器及非线性Jaynes-Cummings模型中的多光子共振能量输运增强及涨落特性，并解析了共振条件与缀饰态机制。
中文摘要 AI 辅助
理解由非经典光驱动的非线性量子光学系统中的非平衡输运和涨落具有挑战性。在此，我们在旋转框架中构建了一个驱动的量子主方程，并结合全计数统计，保留了系统-储库相互作用中驱动引起的频移，基于旋转系统的缀饰基提供了驱动辅助非相干跃迁的统一描述。将该方法应用于Kerr谐振器和非线性Jaynes-Cummings模型，该方法揭示了驱动输入能量电流的显著多光子共振增强，在双光子驱动下与单光子情形相比出现显著高峰。解析地获得了双光子共振关系。非线性Jaynes-Cummings模型中的共振结构非线性地依赖于量子比特-光子耦合，并具有额外的缀饰态分支。低能态近似将共振电流增强归因于缀饰态杂化和非相干能量交换过程的有效激活。除了平均电流之外，近共振处的双光子驱动诱导能量交换图景也显著修改了二阶电流涨落和高阶电流累积量，同时提高了时间归一化信噪比。添加双光子损耗引入了额外的非相干光子对交换路径，并进一步重塑了电流及其涨落。我们希望这些结果能加深对光子驱动和量子耗散协同控制非平衡能量输运和涨落的理解。
英文摘要
Understanding nonequilibrium transport and fluctuations driven by nonclassical light in nonlinear quantum optical systems is challenging. Here, we formulate a driven quantum master equation in the rotating frame combined with full counting statistics, retaining the drive-induced frequency shifts in the system-reservoir interactions and providing a unified description of drive-assisted incoherent transitions based on the rotated system dressed-basis. Applied to a Kerr resonator and a nonlinear Jaynes-Cummings model, the approach reveals pronounced multiphoton-resonant enhancement of the drive input energy current, with significant high peaks under two-photon driving compared to the single-photon case. The two-photon resonance relations are analytically obtained. Resonance structure in the nonlinear Jaynes-Cummings model nonlinearly relies on qubit-photon couplings, with additional dressed-state branches. A low-energy-state approximation attributes the resonant current enhancement to dressed-state hybridization and efficient activation of incoherent energy exchange processes. Beyond the average current, two-photon-driving induced energy exchange picture near resonance also substantially modifies the second-order current fluctuation and higher-order current cumulant, while increasing the time-normalized signal-to-noise ratio. Adding two-photon loss introduces extra incoherent photon-pair exchange pathways and further reshapes the current and its fluctuations. We hope these results may deepen interpretation of photon driving and quantum dissipation cooperatively governing nonequilibrium energy transport and fluctuations.
发表机构
- Zhejiang Normal University（浙江师范大学）
- Suzhou University of Science and Technology（苏州科技大学）
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