论文标题
lotka-volterra种群动态动力学中的相干和可调的振荡器
Lotka-Volterra population dynamics in coherent and tunable oscillators of trapped polariton condensates
论文作者
论文摘要
我们展示了一种制度，其中夹在椭圆形的二维电位中的激子 - 孔子的物质波冷凝物作为地面和量子谐波振荡器的第一引起状态的连贯混合物出现。该系统类似于光学控制的两级系统，并在沿椭圆诱捕电位的主要轴线的凝结物质量中心的Terahertz谐波振荡附近产生。两个陷阱水平之间的种群比可以通过激发激光功率来调整，并显示出遵循Lotka-volterra动力学。我们证明了两个空间位移的捕获冷凝物振荡器之间的相干形成 - 耦合冷凝水振荡器的Huygen时钟同步的极化类似物。
We demonstrate a regime in which matter-wave condensates of exciton-polaritons trapped in an elliptically shaped two-dimensional potential appear as a coherent mixture of ground and first-excited state of the quantum harmonic oscillator. This system resembles an optically controllable two-level system and produces near terahertz harmonic oscillations of the condensate's center of mass along the major axis of the elliptical trapping potential. The population ratio between the two trap levels is tunable through the excitation laser power and is shown to follow Lotka-Volterra dynamics. We demonstrate coherence formation between two spatially displaced trapped condensate oscillators - the polaritonic analogue of Huygen's clock synchronization for coupled condensate oscillators.
