An Improved Sample Complexity Lower Bound for (Fidelity) Quantum State Tomography
Quantum Physics
2023-01-04 v2
Abstract
We show that copies of an unknown rank-, dimension- quantum mixed state are necessary in order to learn a classical description with fidelity. This improves upon the tomography lower bounds obtained by Haah, et al. and Wright (when closeness is measured with respect to the fidelity function).
Cite
@article{arxiv.2206.11185,
title = {An Improved Sample Complexity Lower Bound for (Fidelity) Quantum State Tomography},
author = {Henry Yuen},
journal= {arXiv preprint arXiv:2206.11185},
year = {2023}
}
Comments
3 pages. Comments welcome