2025/09/01 by Gogoi, Ankush, Vikram Pakrashi, Pakrashi, Vikram +2
Physics and Astronomy · #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Mechanical and Optical Resonators #Orbital Angular Momentum in Optics #stochastic dynamics and bifurcation
paper · pdf · doi:10.48550/arxiv.2509.01636
openalex publication_date 2025/09/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a practical and computationally effective Ito-Taylor expansion based stochastic simulation framework for modeling rotational optomechanics experiments. By developing a model using this framework, we could capture the nonlinear orientation dynamics of an optically levitated, nearly cylindrically symmetric nanodumbbell. It successfully reproduces and explains shoulder-like features observed in the power spectral density of libration, which we show arising from the interplay between confined libration and thermally driven rotation around the particle symmetry axis.