Wydarzenia

Seminarium "Coherence-Correlations-Complexity" (KFT, PWr)

Scattering Fractals and Quantum Chaos in Ultracold Dipolar Collisions​

dr Jesús Pérez Ríos

We demonstrate the existence of classical chaotic scattering in ultracold dipolar collisions in the absence of anisotropic dispersion interactions. The classical chaotic scattering, characterized by a fractal structure in a given scattering function as a function of the initial conditions, affects the quantum dynamics leading to a quantal S-matrix that follows random matrix theory predictions. We found that the classical-quantal correspondence for classical chaotic scattering systems is related to the properties of the scattering function that exhibits fractal nature in relation to the Berry-Robnik dependence. In particular, a map linking the average scattering function to the eigenphase repulsion is found. Besides the inherent fundamental implications, the presented results also provide further insights for the currently-ongoing exploration of ultracold collisions of highly-magnetic atoms.