经典、量子、封闭和开放系统的作用

IF 3 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Annals of Physics Pub Date : 2024-05-20 DOI:10.1016/j.aop.2024.169694

Janos Polonyi

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引用次数: 0

摘要

众所周知，在经典动力学和量子动力学的变分原理广义和路径积分形式中，作用函数可分别用于定义经典动力学、量子动力学、封闭动力学和开放动力学。这些方案基于一个不同寻常的特征，即自由度的形式加倍。我们在经典力学和量子力学中提出了一些加倍的论据，以证明这种形式主义是自然的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Action for classical, quantum, closed and open systems

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Action for classical, quantum, closed and open systems

It is well known that the action functional can be used to define classical, quantum, closed, and open dynamics in a generalization of the variational principle and in the path integral formalism in classical and quantum dynamics, respectively. These schemes are based on an unusual feature, a formal redoubling of the degrees of freedom. Several arguments to motivate the redoubling are put forward in classical and quantum mechanics to demonstrate that such a formalism is natural.

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来源期刊

Annals of Physics 物理-物理：综合

CiteScore

5.30

自引率

3.30%

发文量

211

审稿时长

47 days

期刊介绍： Annals of Physics presents original work in all areas of basic theoretic physics research. Ideas are developed and fully explored, and thorough treatment is given to first principles and ultimate applications. Annals of Physics emphasizes clarity and intelligibility in the articles it publishes, thus making them as accessible as possible. Readers familiar with recent developments in the field are provided with sufficient detail and background to follow the arguments and understand their significance. The Editors of the journal cover all fields of theoretical physics. Articles published in the journal are typically longer than 20 pages.