DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2011 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

DY: Fachverband Dynamik und Statistische Physik

DY 37: Quantum Chaos II

DY 37.5: Talk

Thursday, March 17, 2011, 17:00–17:15, ZEU 118

From Fragile to Robust Pseudo-Hermitian Phase in Disordered PT-Symmetric Lattices — •Ragnar Fleischmann — Max-Planck-Institut für Dynamik und Selbstorganisation, Göttingen

Non-hermitian Hamiltonians exhibiting PT-symmetry have sparked an extensive research effort in recent years due to their intriguing property of allowing for a pseudo-hermitian phase with an all real eigenvalue-spectrum [1]. This PT-symmetric phase in general will be spontaneously broken with the variation of a (gain/loss) parameter giving way to a phase of brokenPT-symmetry with a fully or partially complex spectrum. Theoretical work on PT-systems spans from quantum field theory to solid state physics. Most recently, however, with the first experimental realizations of such systems using optical wave guides [2] the center of interest shifted onto photonic systems. Here I will present our recent results on the influence of disorder on symmetry breaking and dynamics in PT-symmetric tight binding models [3] that can be used to describe light propagation in optical wave guide arrays.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2011 > Dresden