Albay John A C, Paneru Govind, Pak Hyuk Kyu, Jun Yonggun
Opt Express. 2018 Nov 12;26(23):29906-29915. doi: 10.1364/OE.26.029906.
The ability to create and manipulate spatio-temporal potentials is essential in the diverse fields of science and technology. Here, we introduce an optical feedback trap system based on high precision position detection and ultrafast feedback control of a Brownian particle in the optical tweezers to generate spatio-temporal virtual potentials of the desired shape in a controlled manner. As an application, we study the nonequilibrium fluctuation dynamics of the particle in a time-varying virtual harmonic potential and validate the Crooks fluctuation theorem in the highly nonequilibrium condition.
在科学技术的各个领域中，创建和操纵时空势的能力至关重要。在此，我们介绍一种基于高精度位置检测和光镊中布朗粒子超快反馈控制的光学反馈阱系统，以可控方式生成所需形状的时空虚拟势。作为一项应用，我们研究了粒子在时变虚拟简谐势中的非平衡涨落动力学，并在高度非平衡条件下验证了克鲁克斯涨落定理。
