Good afternoon,

Oleg Szehr will give a seminar talk about the results of his
Master's thesis. The talk will be on March 1 on Hoenggerberg:
Tuesday, March 1, 17:00, HIT J 51.

Best regards,
Stefan

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Title:
Decoupling Theorems

Abstract:
The talk presents various decoupling results derived during my master
project. Decoupling theorems have proven useful in versatile applications
in the area of quantum information theory. At first we address the
question whether or not a typical physical process ocurring on one share
of a bipartite quantum system destroys the quantum mechanical correlations
between the different subsystems. The crucial mathemathical concept for
this application will be the one of "unitary almost 2-designs" and we analyze
the decoupling behaviour of these constructs.
In the second part of the talk we discuss whether decoupling of quantum
states is possible with classical operations, which has applications in
the area of quantum coding.
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