Tuesday, April 12, 2011, 3:00 pm — Large Seminar Room, Bldg. 510
Dilute cold atomic Fermi gases are usually weakly interacting. By tuning the scattering length to large values people have made them strongly interacting and observed many remarkable phenomena such as high temperature superfluidity. Strong interactions however bring many theoretical challenges, since the usual perturbation theories are no longer reliable. However, one may study two or three atoms very precisely by simply solving the Schrodinger equation. It turns out that results from the few-body theory have deep implications for the many-body physics. Of particular importance is a quantity that measures the probability of finding two atoms at a small distance. Nature itself also provides us with fermions with large scattering length: neutrons. Therefore, cold atoms theory should be relevant for certain aspects of neutron star physics.
Hosted by: Peter Petreczky
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