DPG Phi
Verhandlungen
Verhandlungen
DPG

Berlin 2014 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

A: Fachverband Atomphysik

A 36: Ultra-cold atoms, ions and BEC IV (with Q)

A 36.7: Vortrag

Donnerstag, 20. März 2014, 12:00–12:15, BEBEL E34

Excited state quantum phase transition in the kicked top — •Victor M. Bastidas1, Pedro Perez-Fernandez2, Malte Vogl1, and Tobias Brandes11Institut für Theoretische Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany — 2Departamento de Fisica Aplicada III, Escuela Superior de Ingenieros, Universidad de Sevilla, Camino de los Descubrimientos s/n, ES-41092 Sevilla, Spain

Our aim in this talk is to describe the excited state quantum phase transition in the quasienergy spectrum of the kicked top. Using a semiclassical approach, we analytically obtain a logarithmic divergence in the density of states, which is a hallmark of a continuous excited state quantum phase transition. We propose a protocol to observe signatures of the phase transition close to the critical quasienergy.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2014 > Berlin