Amplification of a single weak min-entropy random source

Amplification of a single weak min-entropy random source

Seminar author:Martin Plesch

Event date and time:09/10/2013 02:30:pm

Event location:IFAE seminar room

Event contact:

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.