Regensburg 2013 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 3: Quantum Dynamics, Decoherence and Quantum Information II

DY 3.5: Vortrag

Montag, 11. März 2013, 16:15–16:30, H39

Nonequilibrium Quantum Phase Transitions in the Ising Model — •Victor Manuel Bastidas Valencia, Clive Emary, Gernot Schaller, and Tobias Brandes — Institut für Theoretische Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany

We establish a set of nonequilibrium quantum phase transitions in the Ising model driven under monochromatic nonadiabatic modulation of the transverse field. We show that besides the Ising-like critical behavior, the system exhibits a novel anisotropic transition which is absent in equilibrium. The novel nonequilibrium quantum phases correspond to states which are synchronized with the external control in the long-time dynamics. A preprint including our results is available under the arXiv Reference: arXiv:1207.5242v1