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SUMMARY:A compact entanglement distillery - Animesh Datta  (University of 
 Oxford)
DTSTART:20111013T131500Z
DTEND:20111013T141500Z
UID:TALK33748@talks.cam.ac.uk
CONTACT:Paul Skrzypczyk
DESCRIPTION:Distributing high-quality entanglement between distant nodes i
 s made possible in the unavoidable presence of decoherence by entanglement
  distillation. Current versions of this protocol are prohibitively costly 
 in terms of resources. We introduce a new scheme for continuous-variable e
 ntanglement distillation that requires only linear temporal and constant p
 hysical or spatial resources\, both exponential improvements over existing
  protocols.  Our scheme uses a fixed module –- an entanglement distiller
 y –- comprising only four quantum memories of at most 50 % storage effic
 iency and allowing a feasible experimental implementation. Tangible quantu
 m advantages are obtainable using existing off-resonant Raman quantum memo
 ries outside their conventional role of storage. (Based on arXiv:1107.4122
 )
LOCATION:MR4\, Centre for Mathematical Sciences
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