Mainz 2017 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 45: Ultracold Plasmas, Rydberg Systems and Molecules

Q 45.3: Vortrag

Donnerstag, 9. März 2017, 11:45–12:00, P 104

Critical properties of a one-dimensional adsorbing state model — •Maryam Roghani and Hendrik Weimer — Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany

We study a quantum version of a one-dimensional adsorbing state model [1]. We find evidence for a steady state phase transition between a phase with algebraic correlations (active) and a phase with exponential decay (inactive). Remarkly, this transition appears to be present despite the system being in a mixed state. In the active phase, we also look into the quantum mutual information of the steady state, comparing to scaling predictions from conformal field theory.

[1]. M. Marcuzzi, M. Buchhold, S. Diehl, and I. Lesanovsky, Phys. Rev. Lett. 116, 245701 (2016)