The initial velocity dependence of the quantum resonance in the delta-kicked rotorJ.-A. Currivan, A. Ullah and M. D. Hoogerland
Department of Physics, University of Auckland - Private Bag 92019, Auckland, New Zealand
received 3 September 2008; accepted in final form 7 January 2009; published February 2009
published online 9 February 2009
The influence of an initial momentum on the appearance of “quantum resonances” in the delta-kicked rotor system is explored experimentally. We show that for certain initial momenta, a resonance can be negated entirely, whereas at others a resonance can be made to appear. At a larger number of kicks, all resonances are shown to narrow. We show that as a consequence, the individual “diffraction peaks” may split. We compare our results to numerical simulations as well as analytical theory.
05.45.Mt - Quantum chaos; semiclassical methods.
37.10.Vz - Mechanical effects of light on atoms, molecules, and ions.
© EPLA 2009