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CeNS Colloquium

Place: Kleiner Physik-Hörsaal, Geschwister-Scholl-Platz
Date: 11.06.10, Time: 15:30 h

Spins and Charges in Low Dimension

Prof. Amir Yacoby
Department of Physics, Harvard University

The confinement of electrons to low dimension offers rich possibilities for exploring new physics in a controllable environment. In such restricted geometries, electronic excitations often acquire surprising physical properties that result from the underlying lattice and the Coulomb interaction among the electrons. For example, ultra clean two dimensional electron systems when subject to a quantizing magnetic field conspire to form novel phases where quasi particles have fractional charge and obey non-Abelian statistics. In one dimension electronic excitations loose completely their resemblance to regular electrons and properties such as spin and charge become decoupled and charge fractionalizes. In this talk we shall review some of our recent experiments that explore a variety of such low dimensional systems and their novel applications.