Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/120422
Title: ADVANCES IN QUANTUM KEY DISTRIBUTION AND QUANTUM RANDOMNESS GENERATION
Authors: LE PHUC THINH
Keywords: quantum key distribution, quantum randomness generation, Bell nonlocality
Issue Date: 14-Apr-2015
Citation: LE PHUC THINH (2015-04-14). ADVANCES IN QUANTUM KEY DISTRIBUTION AND QUANTUM RANDOMNESS GENERATION. ScholarBank@NUS Repository.
Abstract: This thesis discusses some progress in quantum key distribution and quantum randomness generation. We present a study on reference-frame-independent protocols whose knowledge can help design more efficient quantum key distribution protocols, and a framework to the security analysis of distributed-phase-reference protocols, which have been missing for many years. In quantum randomness generation, the amount of extractable randomness depends on the level of characterization of the devices; we study such interaction. In the extreme situation of distrust, i.e. device-independent scenarios, we study the effect of the input randomness on the certifying power of such scenarios, and realize that one cannot amplify an arbitrary min-entropy source device-independently. Finally we discuss the amount of randomness in post-selected data, which has consequences on practical randomness generation protocols. The in-depth study of randomness generation from quantum processes is well justified by the important role of randomness in modern computer science and other fields.
URI: http://scholarbank.nus.edu.sg/handle/10635/120422
Appears in Collections:Ph.D Theses (Open)

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