Quantum fidelity and relative entropy between unitary orbits
Quantum Physics
2014-01-15 v2 Mathematical Physics
math.MP
Abstract
Fidelity and relative entropy are two significant quantities in quantum information theory. We study the quantum fidelity and relative entropy under unitary orbits. The maximal and minimal quantum fidelity and relative entropy between two unitary orbits are explicitly derived. The potential applications in quantum computation and information processing are discussed.
Cite
@article{arxiv.1305.1472,
title = {Quantum fidelity and relative entropy between unitary orbits},
author = {Lin Zhang and Shao-Ming Fei},
journal= {arXiv preprint arXiv:1305.1472},
year = {2014}
}
Comments
11 pages, LaTeX, publised version in JPA