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6 papers · 2 filters
Addendum to "Experimental demonstration of a quantum protocol for Byzantine agreement and liar detection" arXiv:0710.0290
Sascha Gaertner, Mohamed Bourennane, Christian Kurtsiefer +2
Gao et al. [Phys. Rev. Lett. 101, 208901 (2008)] have described a possible intercept-resend attack for the quantum protocol for detectable Byzantine agreement in Phys. Rev. Lett. 1…
CHSH type Bell inequalities involving a party with two or three local binary settings
Yu-Chun Wu, Piotr Badziag, Marek Żukowski
We construct a simple algorithm to generate any CHSH type Bell inequality involving a party with two local binary measurements from two CHSH type inequalities without this party. T…
Universality of state-independent violation of correlation inequalities for noncontextual theories
Piotr Badziag, Ingemar Bengtsson, Adan Cabello +1
We show that the state-independent violation of inequalities for noncontextual hidden variable theories introduced in [Phys. Rev. Lett. 101, 210401 (2008)] is universal, i.e., occu…
The Frame Potential, on Average
Ingemar Bengtsson, Helena Granstrom
A SIC consists of N^2 equiangular unit vectors in an N dimensional Hilbert space. The frame potential is a function of N^2 unit vectors. It has a unique global minimum if the vecto…
Selective phase rotation quantum gate entangler
Hoshang Heydari
We construct a quantum gate entangler based on selective phase rotation transform. In particular, we established a relation between quantum integral transform and quantum gates ent…
Quantum interference structures in trapped ion dynamics beyond the Lamb-Dicke and rotating wave approximations
Dong Wang, Tony Hansson, Asa Larson +2
We apply wave packet methods to study an ion-trap system in the strong excitation regime imposing neither the rotating wave nor the Lamb-Dicke approximations. By this approach we s…