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Abstract
We demonstrate that amplification of arbitrarily weak randomness is possible using quantum resources. We present a randomness amplification protocol that involves Bell experiments. We find a Bell inequality which can amplify arbitrarily weak randomness and give a detailed analysis of the protocol involving it. Our analysis includes finding a sufficient violation of Bell inequality as a function of the initial quality of randomness. It has a very important property that for any quality the required violation is strictly lower than possible to obtain using quantum resources. Among other things, it means that the protocol takes a finite amount of time to amplify arbitrarily weak randomness.
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Authors (3)
-
Rodrigo Gallego
- Freie Universitaet Berlin Dahlem Center for Complex Quantum Systems
-
Marcin Pawłowski
- Uniwersytet Gdański Institute of Theoretical Physics and Astrophysics
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/PhysRevA.91.032317
- License
- Copyright (2015 American Physical Society)
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
PHYSICAL REVIEW A
no. 91,
edition 3,
pages 1 - 8,
ISSN: 2469-9926 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Mironowicz P., Gallego R., Pawłowski M.: Robust amplification of Santha-Vazirani sources with three devices// PHYSICAL REVIEW A. -Vol. 91, iss. 3 (2015), s.1-8
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/physreva.91.032317
- Verified by:
- Gdańsk University of Technology
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