PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
 | PIRSA:05120014
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
Quantum buried treasure Speaker(s): Jonathan Walgate
Abstract: A swashbuckling tale of greed, deception, and quantum data hiding on the high seas. When we hide or encrypt information, it's probably because that information is valuable. I present a novel approach to quantum data hiding based this assumption. An entangled treasure map marks the spot where a hoard of doubloons is buried, but the sailors sharing this map want all the treasure for themselves! How should they study their map using LOCC? This simple scenario yields a surprisingly rich and counterintuitive game theoretic structure. A maximally entangled map performs no better than a separable one, leaving the treasure completely exposed. But non-maximally entangled maps can hide the information almost perfectly. Warning: contains pirates.
Date: 14/12/2005 - 4:00 pm
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