München 2006 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 14: Hauptvortr
äge

HK 14.2: Hauptvortrag

Dienstag, 21. März 2006, 11:00–11:30, A

Effective Field Theories in Physics: from Light Nuclei to Cold Atoms — •H.-W. Hammer — Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik (Theorie), D-53115 Bonn

Effective Field Theory is a powerful method to calculate universal properties associated with a separation of scales in physical systems. Few-body systems with large scattering length are particularly interesting. They display a geometric spectrum of three-body bound states (so-called Efimov states) and log-periodic dependence of observables on the low-energy parameters characterizing the system. I will discuss an effective theory for three- and four-body systems with large scattering length and give an overview of applications in cold atoms and light nuclei.