Dresden 2011 – wissenschaftliches Programm

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SYMB: Intersectional Symposium Many-Body Physics of Model Systems and Real Materials

SYMB 1: Many-Body Physics of Model Systems and Real Materials

SYMB 1.1: Hauptvortrag

Donnerstag, 17. März 2011, 14:30–15:00, HSZ 01

Synthetic Quantum Many-Body Systems — •Tilman Esslinger — Department of Physics, ETH Zurich, Switzerland

The quantum gas approach to many-body physics is fundamentally different from the path taken by other condensed matter systems, where experimentally observed phenomena trigger the search for a theoretical explanation. In quantum gas research, the starting point is a synthetically created many-body model that can be realized in an experiment. The study of the system then leads to the observation of fundamental phenomena such as crossovers and phase transitions. The challenge for the research field of quantum gases is to gain distinctive and new insights into quantum many-body physics by answering long-standing questions of an underlying model or by creating many-body systems of an entirely new character. In this talk I will discuss quantitative experiments with strongly-correlated fermions in optical lattices and the Dicke quantum phase transition in a Bose-Einstein condensate coupled to a high-finesse cavity which leads to the formation of a supersolid state.