LMI Seminar: Scattering of a particle with internal structure from a single slit

Prof. Wolfgang P. Schleich

Institute of Quantum Physics and Center for Integrated Quantum Science and Technology (IQST), Germany Hagler Institute for Advanced Study at Texas A&M University, Texas A&M AgriLife Research, Institute for Quantum Science and Engineering (IQSE), and Department of Physics and Astronomy, Texas A&M University, College Station, USA 

Abstract:

Classically, rigid objects with elongated shapes can fit through apertures only when properly aligned. Quantum-mechanical particles which have internal structure (e.g. a diatomic molecule) also are affected during attempts to pass through small apertures, but there are interesting differences with classical structured particles. We illustrate here some of these differences for ultra-slow particles. Notably, we predict resonances that correspond to prolonged delays of the rotor within the aperture - a trapping phenomenon not found classically. 

References: 
 
[1] B.W. Shore, P. Dömötör, E. Sadurni, G. Süßmann, and W.P. Schleich Scattering of a particle with internal structure from a single slit New J. Phys. 17, 013046 (2015) 
 
[2] P. Dömötör, P. Foldi, M. Benedict, B.W. Shore, and W.P. Schleich Scattering of a particle with internal structure from a single slit: exact numerical solutions New J. Phys. 17, 023044 (2015)