We study quantum reflection of antihydrogen atoms from nanoporous media due to the Casimir-Polder (CP) potential. Using a simple effective medium model, we show a dramatic increase of the probability of quantum reflection of antihydrogen atoms if the porosity of the medium increases. We discuss the limiting case of reflections at small energies, which have interesting applications for trapping and guiding antihydrogen using material walls.
@article{arxiv.1212.5678,
title = {Quantum reflection of antihydrogen from nanoporous media},
author = {G. Dufour and R. Guérout and A. Lambrecht and V. V. Nesvizhevsky and S. Reynaud and A. Yu. Voronin},
journal= {arXiv preprint arXiv:1212.5678},
year = {2014}
}