Seminar series
Date
Tue, 18 Oct 2016
17:00
17:00
Location
C1
Speaker
Ivan Todorov
Organisation
Queen's University Belfast
The talk will be a survey of recent work on the connections between group operator systems and non-signalling correlations. I will show how tensor products in the operator system category can be interpreted as physical theories, and will exhibit a refinement of non-signalling corrections giving rise to quantum attributes of graphs, including quantum versions of the chromatic and the fractional chromatic number. Relations between the parameters will be examined and further directions will be discussed.