A quantum magnetic RC circuit
Mesoscale and Nanoscale Physics
2015-06-18 v1
Abstract
We propose a setup that is the spin analog of the charge-based quantum RC circuit. We define and compute the spin capacitance and the spin resistance of the circuit for both ferromagnetic (FM) and antiferromagnetic (AF) systems. We find that the antiferromagnetic setup has universal properties, but the ferromagnetic setup does not. We discuss how to use the proposed setup as a quantum source of spin excitations, and put forward a possible experimental realization using ultracold atoms in optical lattices.
Cite
@article{arxiv.1401.5712,
title = {A quantum magnetic RC circuit},
author = {Kevin A. van Hoogdalem and Mathias Albert and Pascal Simon and Daniel Loss},
journal= {arXiv preprint arXiv:1401.5712},
year = {2015}
}