Two-spin and multi-spin quantum entanglement in V12 polyoxovanadate molecular nanomagnet
Mesoscale and Nanoscale Physics
2021-11-22 v1 Materials Science
Statistical Mechanics
Abstract
The paper reports a computational study of the quantum entanglement in V12 cluster molecular magnet. The low-temperature properties of the system are modelled with anisotropic quantum Heisenberg model on a tetramer of spins in the external magnetic field. The two-spin entanglement is quantified using the concurrence, whereas the fidelity serves as a measure of four-spin entanglement. The analytic and numerical results are derived and discussed, emphasizing the importance of real-space and spin-space interaction anisotropy and the role of quantum level crossings in the entanglement description in V12.
Keywords
Cite
@article{arxiv.2110.09613,
title = {Two-spin and multi-spin quantum entanglement in V12 polyoxovanadate molecular nanomagnet},
author = {K. Szałowski},
journal= {arXiv preprint arXiv:2110.09613},
year = {2021}
}