Vibrational Spectra of Confined Brownian Particles with Nonreciprocal Effective Interactions.

The paper presents the study of the spectral densities of random processes in a underdamped system of particles in a trap with effective violation of the symmetry of the interparticle interaction. Such stationary systems can be realized, e.g., for dust microparticles in gas discharges. Analytical relations are proposed for the spectral density of oscillations of both identical and different-sort particles in such systems. The relations obtained are verified by numerical simulation of particle dynamics. [ABSTRACT FROM AUTHOR]