Tutorial: Extracting entanglement signatures from neutron spectroscopy

Scheie, Allen Olaf; Laurell, Pontus; Simeth, Wolfgang Josef; Dagotto, Elbio R.; Tennant, David Alan

doi:10.1016/j.mtquan.2024.100020

Tutorial: Extracting entanglement signatures from neutron spectroscopy

Journal Article · Mon Dec 16 00:00:00 EST 2024 · Materials Today Quantum

DOI:https://doi.org/10.1016/j.mtquan.2024.100020· OSTI ID:2498433

^[1]; ^[2]; ^[1]; Dagotto, Elbio R. ^[3]; ^[4]

Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
University of Missouri, Columbia, MO (United States)
University of Tennessee, Knoxville, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
University of Tennessee, Knoxville, TN (United States)

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.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)

Grant/Contract Number:: 89233218CNA000001; AC05-00OR22725

OSTI ID:: 2498433

Alternate ID(s):: OSTI ID: 2507022

Report Number(s):: LA-UR--24-26771

Journal Information:: Materials Today Quantum, Journal Name: Materials Today Quantum Vol. 5; ISSN 2950-2578

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Entanglement witness
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Tutorial: Extracting entanglement signatures from neutron spectroscopy

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