{ "id": "2501.17793", "version": "v1", "published": "2025-01-29T17:32:48.000Z", "updated": "2025-01-29T17:32:48.000Z", "title": "Perspectives on Quantum Friction, Self-Propulsion, and Self-Torque", "authors": [ "Kimball A. Milton", "Nima Pourtolami", "Gerard Kennedy" ], "comment": "8 pages, 9 figures. arXiv admin note: text overlap with arXiv:2411.14274", "categories": [ "quant-ph", "hep-th" ], "abstract": "This paper provides an overview of the nonequilibrium fluctuational forces and torques acting on a body either in motion or at rest relative to another body or the thermal vacuum blackbody radiation. For a moving body, a retarding force emerges, called quantum or Casimir friction, which in vacuum was first predicted by Einstein and Hopf in 1907. Moreover, if a stationary body is not in thermal equilibrium with the blackbody vacuum, a self-propulsive force or torque can appear, resulting in a potentially observable linear or angular terminal velocity, even after thermalization.", "revisions": [ { "version": "v1", "updated": "2025-01-29T17:32:48.000Z" } ], "analyses": { "keywords": [ "quantum friction", "perspectives", "self-propulsion", "self-torque", "thermal vacuum blackbody radiation" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }