423 citations
- Centre National de la Recherche ScientifiqueFR16 papers
- Universidad Complutense de MadridES13 papers
- Instituto de Estructura de la MateriaES12 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT11 papers
- Universidad de HuelvaES9 papers
- University of TurinIT8 papers
- Consejo Superior de Investigaciones CientíficasES6 papers
- Instituto de Astrofísica de AndalucíaES6 papers
- Massachusetts Institute of TechnologyUS6 papers
- Universitat Politècnica de CatalunyaES6 papers
- University of CopenhagenDK6 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR5 papers
7 papers · 2 filters
Necessary and sufficient detection efficiency for the Mermin inequalities
Adan Cabello, David Rodriguez, Ignacio Villanueva
We prove that the threshold detection efficiency for a loophole-free Bell experiment using an -qubit Greenberger-Horne-Zeilinger state and the correlations appearing in the -…
Experimental demonstration of a quantum protocol for Byzantine agreement and liar detection
Sascha Gaertner, Mohamed Bourennane, Christian Kurtsiefer +2
We introduce a new quantum protocol for solving detectable Byzantine agreement (also called detectable broadcast) between three parties, and also for solving the detectable liar de…
Mermin inequalities for perfect correlations
Adan Cabello, Otfried Gühne, David Rodriguez
Any n-qubit state with n independent perfect correlations is equivalent to a graph state. We present the optimal Bell inequalities for perfect correlations and maximal violation fo…
Hierarchy of inequalities for quantitative duality
Jesus Martinez-Linares
We derive different relations quantifying duality in a generic two-way interferometer. These relations set different upper bounds to the visibility V of the fringes measured at the…
Bipartite all-versus-nothing proofs of Bell's theorem with single-qubit measurements
Adan Cabello, Pilar Moreno
If we distribute n qubits between two parties, which quantum pure states and distributions of qubits would allow all-versus-nothing (or Greenberger-Horne-Zeilinger-like) proofs of…
Six-qubit permutation-based decoherence-free orthogonal basis
Adan Cabello
There is a natural orthogonal basis of the 6-qubit decoherence-free (DF) space robust against collective noise. Interestingly, most of the basis states can be obtained from one ano…