Heidelberg 2015 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 36: Poster: Ultra-cold plasmas and Rydberg systems (with Q)

A 36.9: Poster

Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer

Constrained diffusion in noisy lattice gases of polar molecules — •Benjamin Everest — University of Nottingham, Nottingham, UK

Strongly correlated many body states in cold molecular gases are at present in the focus of intense research. Motivated by this we investigate the dynamics of a lattice system in one and two dimensions in which particles tunnel between lattice sites and interact via a van-der-Waals potential. We are particularly interested in the limit of strong dephasing in which the dynamics can be described by a classical master equation with constrained diffusion[1]. While the steady state features a uniform distribution of the particle density, the dynamics is rather intricate showing a variety of different timescales. We focus our investigations mainly on the case in which there is initially a dense particle cluster which is dissolved with time. We will present a simple classical model which captures the main features of this dissolution and compare the interacting and non-interacting cases.

[1] I. Lesanovsky, and J. P. Garrahan, Phys. Rev. Lett. 111, 215305 (2013)

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