Discrete mechanics, time machines and hybrid systems
Quantum Physics
2013-10-11 v1 General Relativity and Quantum Cosmology
Classical Physics
Abstract
Modifying the discrete mechanics proposed by T.D. Lee, we construct a class of discrete classical Hamiltonian systems, in which time is one of the dynamical variables. This includes a toy model of time machines which can travel forward and backward in time and which differ from models based on closed timelike curves (CTCs). In the continuum limit, we explore the interaction between such time reversing machines and quantum mechanical objects, employing a recent description of quantum-classical hybrids.
Keywords
Cite
@article{arxiv.1310.2862,
title = {Discrete mechanics, time machines and hybrid systems},
author = {Hans-Thomas Elze},
journal= {arXiv preprint arXiv:1310.2862},
year = {2013}
}
Comments
14 pages; invited talk at the conference The Time Machine Factory (Torino, October 2012)