The superposition principle is one of the bizarre predictions of quantum mechanics. Nevertheless, it has been experimentally verified using electrons, photons, atoms, and molecules. In this article, using a 20nm levitated ferromagnetic FePt nanoparticle, an exotic all optical spin polarization technique and the matter-wave interferometry, we show that a mesoscopic spatial Schrodinger cat can be created. Additionally, we argue that the maximum spatial separation between the delocalized wavepackets can be 25μm and is significantly larger than the object itself.
@article{arxiv.1812.09948,
title = {Matter-wave interferometry using a levitated magnetic nanoparticle},
author = {A T M Anishur Rahman},
journal= {arXiv preprint arXiv:1812.09948},
year = {2020}
}