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SUMMARY:Quantum information causality - Damian Pitalua-Garcia (University 
 of Cambridge)
DTSTART:20121108T141500Z
DTEND:20121108T151500Z
UID:TALK41487@talks.cam.ac.uk
CONTACT:Paul Skrzypczyk
DESCRIPTION:How much information can a transmitted physical system fundame
 ntally communicate? We introduce the principle of quantum information caus
 ality\, which states the maximum amount of quantum information that a quan
 tum system can communicate as a function of its dimension\, independently 
 of any previously shared quantum physical resources. We present a new quan
 tum information task\, whose success probability is upper bounded by the n
 ew principle\, and show that an optimal strategy to perform it combines th
 e quantum teleportation and superdense coding protocols with a task that h
 as classical inputs.\n
LOCATION:MR4\, Centre for Mathematical Sciences
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