2024/04/18 by Mohammad Ali Abbassi, Abbassi, Mohammad Ali
Engineering · #Advanced Surface Polishing Techniques #FOS: Physical sciences #Fluid Dynamics and Thin Films #Optics (physics.optics) #Particle Dynamics in Fluid Flows #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2404.12459
openalex publication_date 2024/04/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the recoil heating phenomenon experienced by a dielectric spherical particle when it interacts with a linearly polarized plane wave within the Rayleigh regime. We derive the fluctuating force acted upon the particle arising from the fluctuations of the electromagnetic fields. Our derivations reveal that the spectral density of the fluctuating force along the propagation direction is 7ℏ ω0 Pscat/5c2. Meanwhile, along the direction of the electric and magnetic fields, it is ℏ ω0 Pscat/5c2 and 2ℏ ω0 Pscat/5c2, respectively. Here, Pscat denotes the power scattered by the particle, ℏω0 represents the energy of a photon, and c is the speed of light. Recoil heating imposes fundamental limitations in levitated optomechanics, constraining the minimum temperatures achievable in cooling processes, the coherence time of the system, and the sensitivity of force measurements.