Winter Semester 2015/16 kicks off

And with it, the Monday faculty colloquium. Hosted by Wolfgang Schleich, the first speaker this season has been Prof. Wojciech Zurek, Einstein Professor at Ulm University and a researcher at Los Alamos State Laboratory. Besides revising some aspects of his well-known theory of decoherence, Wojciech presented his approach to a minimal derivation of the quantum formalism in terms of the concept of “Envariance” (Environment assisted invariance) of composite quantum states. This allows for Born rule to feature as derived result rather than an additional postulate. There were plenty of questions and agitated discussions showing that nothing stimulates physicists more than a good dose of foundations. You can check the technical details of Wojciech work’s on the concept of envariance in   W. H. Zurek, Probabilities from entanglement, Borns rule from envariance, quant-ph/0405161, Phys. Rev. A 71, 052105 (2005) .

zurekws1   zurekws4 zurekws3 zurekws2