N ov 2 01 8 Regularising data for practical randomness generation

Boris Bourdoncle, ∗ Pei-Sheng Lin, † Denis Rosset, 3 Antonio Aćın, 4 and Yeong-Cherng Liang ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain Department of Physics, National Cheng Kung University, Tainan 701, Taiwan Perimeter Institute for Theoretical Physics, Waterloo, Ontario Canada N2L 2Y5 ICREA-Institució Catalana de Recerca i Estudis Avançats, Lluis Companys 23, 08010 Barcelona, Spain