Düsseldorf 2007 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 23: Poster II - Interaction with strong or short laser pulses

A 23.1: Poster

Donnerstag, 22. März 2007, 16:30–18:30, Poster B

Noise Embedded Quantum Systems — •Kamal Priya Singh and Jan Michael Rost — Max Planck Institute for the Physics of Complex Systems, Dresden

The effect of noise on the nonlinear photoionization of an atom due to a femtosecond pulse is investigated in the framework of the stochastic Schrödinger equation. A modest amount of white noise results in an enhancement of the net ionization yield by several orders of magnitude, giving rise to a form of quantum stochastic resonance. We demonstrate that this effect is preserved if the white noise is replaced by broadband chaotic light.