Quantification of Entanglement from Magnetic Susceptibility for a Heisenberg Spin 1/2 system
Strongly Correlated Electrons
2014-03-18 v2
Abstract
Temperature and magnetic field dependent magnetization and extraction of entanglement from the experimental data is reported for dichloro(thiazole)copper(II), a Heisenberg spin chain system. The magnetic susceptibility vs. temperature plot exhibits signature of infinite spin chain. Isothermal magnetization measurements (as a function of magnetic field) were performed at various temperatures below the antiferromagnetic (AFM) ordering, where the AFM correlations persist significantly. These magnetization curves are fitted to the theoretically generated Bonner-Fisher model. Magnetic susceptibility can be used as a macroscopic witness of entanglement; using which entanglement is extracted from the experimentally measured magnetic data.
Keywords
Cite
@article{arxiv.1204.5669,
title = {Quantification of Entanglement from Magnetic Susceptibility for a Heisenberg Spin 1/2 system},
author = {Tanmoy Chakraborty and Harkirat Singh and Diptaranjan Das and Tamal K. Sen and Swadhin K. Mandal and Chiranjib Mitra},
journal= {arXiv preprint arXiv:1204.5669},
year = {2014}
}