Leggett-Garg inequalities for multitime processes
Quantum Physics
2025-06-12 v4
Abstract
We study some aspects of the Leggett-Garg inequalities by using the operator-state formalism for multitime processes. The process tensor in its Choi-state form, which we call process state, is employed to investigate the Leggett-Garg inequalities and their violations. We find the sufficient conditions on process states for the Leggett-Garg inequalities to hold, based on which we find a new way of characterizing the influences on the violation of Leggett-Garg inequalities through the structure of process states.
Keywords
Cite
@article{arxiv.2211.13396,
title = {Leggett-Garg inequalities for multitime processes},
author = {Zhiqiang Huang and Xiao-Kan Guo},
journal= {arXiv preprint arXiv:2211.13396},
year = {2025}
}
Comments
13 pages, 1 figure