Stuttgart 2012 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 46: Quantengase: Optische Gitter 4
Q 46.1: Vortrag
Donnerstag, 15. März 2012, 14:00–14:15, V53.01
Experimental realization of resonating valence bond states with ultracold bosonic atoms in arrays of optical plaquettes — •Marcos Atala1,2, Monika Aidelsburger1,2, Yu-Ao Chen1,2, Sylvain Nascimbène1,2, Stefan Trotzky1,2, Belén Paredes3, and Immanuel Bloch1,2 — 1Fakultät für Physik, Ludwig-Maximilian-Universität, Schellingstrasse 4, 80798 München, Germany — 2Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany — 3Fakultät für Physik and Arnold Sommerfeld Center for Theoretical Physics, Ludwig-Maximilian-Universität, 80333 München, Germany
The concept of resonating valence bond state lies at the heart of fundamental many-body quantum physical phenomena, such as high temperature superconductivity and topological quantum computation. In this talk we will present our results on direct experimental evidence of a valence bond quantum resonance with ultracold bosonic atoms. The atoms are manipulated using a superlattice structure, creating a three-dimensional array of independent four-site plaquettes. Furthermore, we will show how resonating valence bond states with s- and d-wave symmetry can be created and characterized. These two states constitute a minimum basis of a topologically protected qubit.