2018/09/30 by John A. C. Albay, Govind Paneru, Hyuk Kyu Pak +1
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Brownian motion #Computer science #Generator (circuit theory) #Non-equilibrium thermodynamics #Optical tweezers #Optics #Orbital Angular Momentum in Optics #Physics #Position (finance) #Power (physics) #Quantum Information and Cryptography #Quantum mechanics #Statistical physics #cond-mat.stat-mech
paper · pdf · doi:10.1364/oe.26.029906
published as Opt. Express 26, 29906-29915 (2018)
arxiv created 2018/09/30 · openalex publication_date 2018/10/31 · arxiv updated 2018/11/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
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.