Irreversibility and decoherence in an ideal gas

7th International Workshop DICE2014 Spacetime – Matter – Quantum Mechanics

物理学;力学

Polonyi, Janos^1

Strasbourg University, CNRS-IPHC, 23 rue du Loess, Strasbourg Cedex 2

67037, France^1

关键词: Classical mechanics;    Closed time paths;    Dissipative forces;    Effective forces;    ITS applications;    Non-interacting particles;    Quantum physics;    Quantum system;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/626/1/012021/pdf
DOI  :  10.1088/1742-6596/626/1/012021

学科分类：力学，机械学

来源: IOP

【 摘 要 】

Different models are described where non-interacting particles generate dissipative effective forces by the mixing of infinitely many soft normal modes. The effective action is calculated for these models within the Closed Time Path formalism. This is a well known scheme for quantum systems but its application in classical mechanics presents a new, more unified derivation and treatment of dissipative forces within classical and quantum physics.