Hi all,

next week, we have a talk by Laura Mancinska on Monday at 4pm in the Time Room.

Best wishes,
Markus



Title: A generalization of Kochen-Specker sets
Speaker: Laura Mancinska (IQC Waterloo)

Abstract: I will discuss two generalizations of Kochen-Specker (KS) sets: projective KS sets and generalized KS sets. We will see that projective KS sets can be used to characterize all graphs for which the chromatic number is strictly larger than the quantum chromatic number. Here, the quantum chromatic number is defined via a nonlocal game based on graph coloring. We will further show that from any graph with separation between these two quantities, one can construct a classical channel for which entanglement assistance increases the one-shot zero-error capacity. As an example, we will consider a new family of classical channels with an exponential increase.


Date: September 24, 2012 - 4:00 pm
Series: Perimeter Institute Quantum Discussions
Location: Time Room