Amplification of a single weak min-entropy random source

Seminar date and time: 
Tuesday, 10 September, 2013 - 14:30
Masaryk University
Martin Plesch
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

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