Notes on quantum coherence with l_1-norm and convex-roof l_-norm
Quantum Physics
2021-11-25 v1
Abstract
In this work, we evaluate quantum coherence using the l_1-norm and convex-roof l_1-norm and obtain several new results. First, we provide some new general triangle-like inequalities of quantum coherence, with results better than existing ones. Second, for some special three-dimensional quantum states, a method for calculating the convex-roof l_1-norm is presented. Lastly, we offer distinct upper bounds in the l_1-norm measure of coherence based on the quantum state itself.
Keywords
Cite
@article{arxiv.2111.12220,
title = {Notes on quantum coherence with l_1-norm and convex-roof l_-norm},
author = {Jiayao Zhu and Jian Ma and Tinggui Zhang},
journal= {arXiv preprint arXiv:2111.12220},
year = {2021}
}
Comments
8 pages