{ "id": "2303.15157", "version": "v1", "published": "2023-03-27T12:49:00.000Z", "updated": "2023-03-27T12:49:00.000Z", "title": "Brownian motion of a particle with higher-derivative dynamics", "authors": [ "Z. C. Tu" ], "comment": "This manuscript is a translation of a Chinese paper contributing for 100 anniversary of Department of Physics, Beijing Normal University", "categories": [ "cond-mat.stat-mech", "physics.class-ph" ], "abstract": "The Brownian motion of a particle with higher-derivative dynamics (HDD) coupling with a bath consisting of harmonic oscillators is investigated. The Langevin equation and corresponding Fokker-Planck equation for the Brownian motion of the HDD particle are derived. As a case study, we particularly consider a stochastic Pais-Uhlenbeck oscillator. It is found that the Boltzmann distribution is pathological while this distribution is the steady solution to the Fokker-Planck equation.", "revisions": [ { "version": "v1", "updated": "2023-03-27T12:49:00.000Z" } ], "analyses": { "keywords": [ "brownian motion", "higher-derivative dynamics", "stochastic pais-uhlenbeck oscillator", "case study", "langevin equation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }