Amplification of a single weak min-entropy random source

Seminar date and time: 
Tuesday, 10 September, 2013 - 14:30
Affiliation: 
Masaryk University
Author: 
Martin Plesch
Location: 
IFAE seminar room

We suggest a procedure for amplifying a single weak random source with the help of tri-partite GHZ-type entangled states in a device-independent way. If the quality of the source measured in min-entropy rate reaches a fixed
threshold log2(Sqrt(3)), perfect random bits can be produced with a single set of quantum devices. For weaker sources more sets of devices can be weaved, which means the procedure can be used to amplify almost any random
source.

Campus d'excel·lència internacional U A B