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- University of WaterlooCA36 papers
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- The University of QueenslandAU6 papers
- École Normale Supérieure de LyonFR5 papers
- Laboratoire de Physique de l'ENS de LyonFR5 papers
- Massachusetts Institute of TechnologyUS5 papers
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- University of California, Santa BarbaraUS5 papers
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- University of VictoriaCA5 papers
4 papers · 1 filter
Security of quantum key distribution with imperfect devices
Daniel Gottesman, Hoi-Kwong Lo, Norbert Lütkenhaus +1
We prove the security of the Bennett-Brassard (BB84) quantum key distribution protocol in the case where the source and detector are under the limited control of an adversary. Our…
Positivity of relativistic spin network evaluations
Hendryk Pfeiffer
Let G be a compact Lie group. Using suitable normalization conventions, we show that the evaluation of GxG-symmetric spin networks is non-negative whenever the edges are labeled by…
Uncloneable Encryption
Daniel Gottesman
Quantum states cannot be cloned. I show how to extend this property to classical messages encoded using quantum states, a task I call "uncloneable encryption." An uncloneable encry…
Isolated Horizons in 2+1 Gravity
Abhay Ashtekar, Olaf Dreyer, Jacek Wisniewski
Using ideas employed in higher dimensional gravity, non-expanding, weakly isolated and isolated horizons are introduced and analyzed in 2+1 dimensions. While the basic definitions…