论文标题
路径积分和非线性光学镊子
Path integrals and nonlinear optical tweezers
论文作者
论文摘要
我们使用路径积分来计算在非线性光学镊子的作用下，在过度阻尼和阻尼不足的方案中，在非线性光学镊子的作用下计算粒子的相关函数。在这两种情况下，都发现领先的秩序非线性表现为系统的特征频率变化。将结果与数值模拟进行比较。本计算实现了一种直接的实验方法，可以通过分析位置数据（类似于标准的谐波镊子）来访问非线性光学陷阱参数。
We use path integrals to calculate perturbative corrections to the correlation function of a particle under the action of nonlinear optical tweezers, both in the overdamped and underdamped regimes. In both cases, it is found that to leading order nonlinearities manifest as shifts in the characteristic frequency of the system. The results are compared to numerical simulations. The present calculations enable a direct experimental method to access the nonlinear optical trap parameters by analyzing position data, similarly to standard harmonic tweezers.
