Stuttgart 2012 – wissenschaftliches Programm
A 20.4: Vortrag
Dienstag, 13. März 2012, 15:15–15:30, V47.01
Supersymmetry in Rydberg-dressed lattice fermions — •Hendrik Weimer1, Liza Huijse1, Alexey Gorshkov2, Guido Pupillo3, Peter Zoller4, Mikhail Lukin1, and Eugene Demler1 — 1Physics Department, Harvard University, Cambridge, MA, USA — 2IQI, Caltech, Pasadena, CA, USA — 3University of Strasbourg, Strasbourg, France — 4University of Innsbruck and IQOQI, Innsbruck, Austria
Supersymmetry is a powerful tool that allows the characterization of
strongly correlated many-body systems, in particular in the case of
supersymmetric extensions of the fermionic Hubbard model . At the
same time, these models can exhibit rich and exotic physics on their
own, such as flat bands with a vanishing dispersion relation. We show
that such lattice models can be realized with Rydberg-dressed fermions
in optical lattices. Strong interactions within the ground state
manifold of the atoms can be realized by admixing a weak contribution
of a highly excited Rydberg state . We discuss the unique
possbilities of ultracold atoms for the detection of supersymmetry and
the effects of tuning the system away from the supersymmetric point.
 P. Fendley, K. Schoutens, J. de Boer, PRL 90, 120402 (2003).
 J. Honer, H. Weimer, T. Pfau, H. P. Büchler, PRL 105, 160404 (2010).