TY - T1 - Paradoxical reflection in quantum mechanics SN - / UR - http://hdl.handle.net/10138/28502 T3 - A1 - Garrido, Pedro L.; Goldstein, Sheldon; Lukkarinen, Jani; Tumulka, Roderich A2 - PB - Y1 - 2011 LA - eng AB - This article concerns a phenomenon of elementary quantum mechanics that is quite counter-intuitive, very non-classical, and apparently not widely known: a quantum particle can get reflected at a downward potential step. In contrast, classical particles get reflected only at upward steps. The conditions for this effect are that the wave length is much greater than the width of the potential step and the kinetic energy of the particle is much smaller than the depth of the potential step. This phen... VO - IS - SP - OP - KW - 114 Physical sciences; 111 Mathematics N1 - PP - ER -