Quantum Matter with Strong Correlations: from hot superconductors to cold atoms

25 Avril 2012

Colloque

About 25 years have passed since the
spectacular discovery of
superconductors with (high) transition
temperatures by Bednorz and Müller
(Nobel prize, 1987). Yet, the broad
class of materials to which these
superconducting copper-oxides
belong continues to fascinate
physicists and chemists. Indeed, solid-
state chemistry, new elaboration
techniques, and improved
experimental probes have provided us
with many families of transition-metal
oxides with remarkable electronic
properties, such as metal-insulator
transitions, large magnetoresistance or
thermoelectric power. Furthermore,
these materials raise deep
fundamental physics questions. They
challenge the very basic principles on
which conventional theories of the
solid-state are based because, in
those materials, the motion of each
electron is strongly correlated with
that of all the others. New frontiers are
also opening up, which bring together
condensed-matter physics and
quantum optics.(Artificial crystals)
made of ultra-cold atoms trapped by
laser beams can be engineered with a
remarkable level of controllability, and
allow for the study of quantum physics
in previously unexplored regimes.

Intervenants / conférenciers:
Prof. Dr. Antoine GEORGES, Ecole
Polytechnique, Paris

Organisation:
Prof. P. Werner
Email: bernadette.kuhn-piccand@unifr.ch    T: 9072    F: 9747    

Date et heure: 25 Avril 2012 17:15

Lieu: Pérolles, 0.51 du bâtiment de physique (chemin du Musée 3, Fribourg)

Rubrique: Physique,Physik

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