08-04-2011: Colloquium Claus Kiefer
23 - 12 - 2010
Friday 8 April 2010, 11:00h, at Nikhef in H331
Speaker: Claus Kiefer (University of Cologne)
Title: DECOHERENCE – From Schrödinger’s Cat to the Classical World
How does the classical behaviour emerge in a world that is fundamentally described by quantum theory? The key to the answer is given by a process that was described for the first time forty years ago – decoherence. Decoherence is the irreversible emergence of classical properties of a quantum system through the unavoidable interaction with its environment. In my talk I shall give a general introduction into decoherence and present its most important theoretical and experimental applications. These include, in particular, the localization of objects.
I shall then discuss the relevance of decoherence for the interpretation of quantum theory and end with an outlook on quantum cosmology and the origin of the direction of time.
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