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      Basic exclusivity graphs in quantum correlations 

      Cabello Quintero, Adán; Danielsen, Lars Eirik; López Tarrida, Antonio José; Portillo Fernández, José Ramón (American Physical Society, 2013)
      A fundamental problem is to understand why quantum theory only violates some noncontextuality (NC) inequalities and ...
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      Compact set of invariants characterizing graph states of up to eight qubits 

      Cabello Quintero, Adán; López Tarrida, Antonio José; Moreno,, Pilar; Portillo Fernández, José Ramón (American Physical Society, 2009)
      The set of entanglement measures proposed by Hein, Eisert, and Briegel for n-qubit graph states [Phys. Rev. A 69, 062311 ...
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      Entanglement in eight-qubit graph states 

      Cabello Quintero, Adán; López Tarrida, Antonio José; Moreno, Pilar; Portillo Fernández, José Ramón (Elsevier, 2009)
      Any 8-qubit graph state belongs to one of the 101 equivalence classes under local unitary operations within the Clifford ...
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      Experimental fully contextual correlations 

      Amselem, Elias; Danielsen, Lars Eirik; López Tarrida, Antonio José; Portillo Fernández, José Ramón; Bourennane, Mohamed; Cabello Quintero, Adán (American Physical Society, 2012)
      Quantum correlations are contextual yet, in general, nothing prevents the existence of even more contextual correlations. ...
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      Graph-theoretic approach to Bell experiments with low detection efficiency 

      Xu, Zhen-Peng; Steinberg, Jonathan; Singh, Jaskaran; López Tarrida, Antonio José; Portillo Fernández, José Ramón; Cabello Quintero, Adán (Cornell University, 2023)
      Bell inequality tests where the detection efficiency is below a certain threshold ηcrit can be simulated with local ...
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      Kochen-Specker set with seven contexts 

      Lisonek, Petr; Badziag, Piotr; Portillo Fernández, José Ramón; Cabello Quintero, Adán (American Physical Society, 2014)
      The Kochen-Specker (KS) theorem is a central result in quantum theory and has applications in quantum information. Its ...
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      Memory cost of quantum contextuality 

      Cabello Quintero, Adán; Gühne, Otfried; Kleinmann, Matthias; Larsson, Jan Ake; Portillo Fernández, José Ramón (2011)
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      Minimal true-implies-false and true-implies-true sets of propositions in noncontextual hidden-variable theories 

      Cabello Quintero, Adán; Portillo Fernández, José Ramón; Solís, Alberto; Svozil, Karl (American Physical Society, 2018)
      An essential ingredient in many examples of the conflict between quantum theory and noncontextual hidden variables (e.g., ...
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      Optimal preparation of graph states 

      Cabello Quintero, Adán; Danielsen, Lars Eirik; López Tarrida, Antonio José; Portillo Fernández, José Ramón (American Physical Society, 2011)
      We show how to prepare any graph state of up to 12 qubits with (a) the minimum number of controlled-Z gates and (b) the ...
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      Quantum social networks 

      Cabello Quintero, Adán; Danielsen, Lars Eirik; López Tarrida, Antonio José; Portillo Fernández, José Ramón (IOP Science, 2012)
      We introduce a physical approach to social networks (SNs) in which each actor is characterized by a yes–no test on a ...
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      Quantum state-independent contextuality requires 13 rays 

      Cabello Quintero, Adán; Kleinmann, Matthias; Portillo Fernández, José Ramón (IOP Science, 2016)
      We show that, regardless of the dimension of the Hilbert space, there exists no set of rays revealing state-independent ...