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|Title:||Effects of reduced measurement independence on bell-based randomness expansion||Authors:||Koh, D.E.
|Issue Date:||18-Oct-2012||Citation:||Koh, D.E., Hall, M.J.W., Setiawan, Pope, J.E., Marletto, C., Kay, A., Scarani, V., Ekert, A. (2012-10-18). Effects of reduced measurement independence on bell-based randomness expansion. Physical Review Letters 109 (16) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.109.160404||Abstract:||With the advent of quantum information, the violation of a Bell inequality is used to witness the absence of an eavesdropper in cryptographic scenarios such as key distribution and randomness expansion. One of the key assumptions of Bell's theorem is the existence of experimental "free will," meaning that measurement settings can be chosen at random and independently by each party. The relaxation of this assumption potentially shifts the balance of power towards an eavesdropper. We consider a no-signaling model with reduced "free will" and bound the adversary's capabilities in the task of randomness expansion. © 2012 American Physical Society.||Source Title:||Physical Review Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/112425||ISSN:||00319007||DOI:||10.1103/PhysRevLett.109.160404|
|Appears in Collections:||Staff Publications|
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