Tutorial: Extracting entanglement signatures from neutron spectroscopy
Strongly Correlated Electrons
2025-01-06 v1 Quantum Physics
Abstract
This tutorial is a pedagogical introduction to recent methods of computing quantum spin entanglement witnesses from spectroscopy, with a special focus on neutron scattering on quantum spin systems. We offer a brief introduction to the concepts and equations, define a data analysis protocol, and discuss the interpretation of three entanglement witnesses: one-tangle, two-tangle, and Quantum Fisher Information. We also discuss practical experimental considerations, and give three examples of extracting entanglement witnesses from experimental data: Copper Nitrate, KCuF3, and NiPS3.
Keywords
Cite
@article{arxiv.2409.15249,
title = {Tutorial: Extracting entanglement signatures from neutron spectroscopy},
author = {Allen Scheie and Pontus Laurell and Wolfgang Simeth and Elbio Dagotto and D. Alan Tennant},
journal= {arXiv preprint arXiv:2409.15249},
year = {2025}
}
Comments
11 pages, 5 figures