Quantum spreading of a self-gravitating wave-packet in singularity free gravity Luca Buoninfante, Gaetano Lambiase and Anupam Mazumdar Eur. Phys. J. C, 78 1 (2018) 73 Published online: 25 January 2018 DOI: 10.1140/epjc/s10052-018-5535-4