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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-3614
DTSTART:20150126T220000Z
DTEND:20150126T230000Z
DTSTAMP:20260416T144458Z
LAST-MODIFIED:20150123T224028Z
LOCATION:4274 Chamberlin Hall
SUMMARY:From Quantum Communications to Small Quantum Computers\, R. G.
  Herb Condensed Matter Seminar\, Graeme Smith\, IBM TJ Watson Research
  Center
DESCRIPTION:Physical information carriers obey quantum laws.  Taking p
 roper account of this fact has led over the past few decades to profou
 nd generalizations of both communication and computation theory.  Firs
 t\, I’ll discuss the central question in the theory of quantum commu
 nication: What are the capabilities of a noisy quantum communication l
 ink?  Addressing this question leads us to concepts like entanglement\
 , a fundamentally quantum form of correlations which turns out to be a
  remarkably useful resource\, new capabilities such as unconditionally
  secure cryptographic key agreement\, and classically impossible kinds
  of synergy between independent communication links.  Second\, I’ll 
 discuss two key questions in the race to build a quantum computer: wha
 t can we do with a small quantum computer\, and how can we know that w
 e’ve done it?  These will be central questions in the coming decade 
 as the size of quantum computing experiments begins to outstrip our ca
 pacity to do effective modeling on classical machines.
URL:https://www.physics.wisc.edu/events/?id=3614
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