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Matthias Kleinmann

Research Fellow

Office: A6.P1.5.
Address: Department of Theoretical Physics
University of the Basque Country UPV/EHU
P.O. Box 644
48080 Bilbao
Phone: +34-946-01-7927


(since Oct'14; a complete list is at
  • Memory cost for simulating all quantum correlations of the Peres-Mermin scenario
    Gabriel Fagundes, Matthias Kleinmann

  • Proposed experiment to test fundamentally binary theories
    Matthias Kleinmann, Tamás Vértesi, and Adán Cabello

  • Optimal detection of metrologically useful entanglement
    Iagoba Apellaniz, Matthias Kleinmann, Otfried Gühne, and Géza Tóth

  • Entanglement and extreme spin squeezing of unpolarized states
    New J. Phys. 19, 013027 (2017) (arXiv:1605.07202)
    Giuseppe Vitagliano, Iagoba Apellaniz, Matthias Kleinmann, Bernd Lücke, Carsten Klempt, and Géza Tóth

  • Device-independent certification of a nonprojective qubit measurement
    Phys. Rev. Lett. 117, 260401 (2016) (arXiv:1604.01417)
    Esteban S. Gómez, Santiago Gómez, Pablo González, Gustavo Cañas, Johanna F. Barra, Aldo Delgado, Guilherme B. Xavier, Adán Cabello, Matthias Kleinmann, Tamás Vértesi, and Gustavo Lima

  • Analysing multiparticle quantum states
    in: “Quantum [Un]Speakables II,” edited by R. Bertlmann and A. Zeilinger (Springer, 2017) pp. 345–364 (2016) (arXiv:1506.06976)
    Otfried Gühne, Matthias Kleinmann, and Tobias Moroder

  • Quantum correlations are stronger than all nonsignaling correlations produced by n-outcome measurements
    Phys. Rev. Lett. 117, 150401 (2016) (arXiv:1505.04179)
    Matthias Kleinmann and Adán Cabello

  • Quantum state-independent contextuality requires 13 rays
    J. Phys. A: Math. Theor. 49, 38LT01 (2016) (arXiv:1606.01848)
    Adán Cabello, Matthias Kleinmann, and José R. Portillo

  • Necessary and sufficient condition for quantum state-independent contextuality
    Phys. Rev. Lett. 144, 250402 (2015) (arXiv:1501.03432)
    Adán Cabello, Matthias Kleinmann, and Costantino Budroni

  • Systematic errors in current quantum state tomography tools
    Phys. Rev. Lett. 114, 080403 (2015) (arXiv:1310.8465)
    C. Schwemmer, L. Knips, D. Richart, T. Moroder, M. Kleinmann, O. Gühne, and H. Weinfurter

  • Sequences of projective measurements in generalized probabilistic models
    J. Phys. A: Math. Theor. 47, 455304 (2014) (arXiv:1402.3583)
    Matthias Kleinmann


  • 6–10 Mar 2017: Theory-independent conclusions from bipartite quantum correlations, DPG-Frühjahrstagung, Mainz, Germany
  • 3–7 Oct 2016: Theory-independent conclusions from bipartite quantum correlations (invited talk), Workshop on Temporal quantum correlations and steering, Siegen, Germany
  • 17 Jun 2016: Device-independent demonstration that a qubit is more than a quantum coin (talk), CeQIP 2016, Valtice, Czech Republic
  • 15 Apr 2016: Challenging quantum theory beyond Bell tests (talk), ICE-3 conference, Palma de Mallorca, Spain
  • 2 Mar 2016: Optimal detection of useful quantum entanglement with few expectation values (talk), Spring Meeting of the German Physical Society, Hanover, Germany
  • 29 Feb 2016: Testing an axiom of quantum theory: Which measurements are admissible? (talk), Spring Meeting of the German Physical Society, Hanover, Germany
  • 10 Nov 2015: What can we gain from reconstructions? (invited talk), Workshop on Quantum Correlations, Contextuality and All That... Again, Natal, Brazil
  • 24 Aug 2015: Quantum measurements with more than two outcomes: Mathematical freedom meets nature (invited talk), Contextuality: why and how, Linköping, Sweden
  • 11 Aug 2015: Is nature merely dichotomic? (talk), 5th Workshop on Quantum Information, Paraty, Rio de Janeiro, Brazil
  • 9 Jul 2015: Can quantum correlations arise from measurements with only a limited number of outcomes? (invited talk), Workshop on Foundations of Quantum Information, Lake Okanagan, British Columbia, Canada
  • 5 Mar 2015: Current topics in foundations of quantum mechanics Bell inequalities: Kochen-Specker theorem, and generalized probabilistic models (seminar), Basque Center for Applied Mathematics (BCAM), Bilbao, Spain
  • 29 Jan 2015: State-independent contextuality: What it is, and what it is not (seminar), Dep. de Matemática, UFMG Belo Horizonte, Brazil
  • 14 Jan 2015: Challenging the structure of quantum measurements (seminar), Dep. de Física, U Concepción, Chile
  • 5 Nov 2014: Loopholes in contextuality experiments (invited talk), Quantum Contextuality: Trick or Treat, Singapore, Singapore