Adiabatic demagnetization and generation of entanglement in spin systems
Quantum Physics
2015-06-03 v1
Abstract
We study the entanglement emergence in a dipolar-coupled nuclear spin-1/2 system cooled using the adiabatic demagnetization technique. The unexpected behavior of entanglement for the next- and next-next-neighbor spins is revealed: entangled states of a spin system appear in two distinct temperature and magnetic field regions separated by a zero-concurrence area. The magnetic field dependence of the concurrence can have two maximums which positions are determined by the initial conditions and number of spins in a chain.
Keywords
Cite
@article{arxiv.1201.3902,
title = {Adiabatic demagnetization and generation of entanglement in spin systems},
author = {Gregory B. Furman and Victor M. Meerovich and Vladimir L. Sokolovsky},
journal= {arXiv preprint arXiv:1201.3902},
year = {2015}
}
Comments
9 figures; Physics Letters A 2012