Quantum reflection of antihydrogen from a liquid helium film P.-P. Crépin, E. A. Kupriyanova, R. Guérout, A. Lambrecht, V. V. Nesvizhevsky, S. Reynaud, S. Vasiliev and A. Yu. Voronin EPL, 119 3 (2017) 33001 Published online: 10 October 2017 DOI: 10.1209/0295-5075/119/33001