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A quantum bit.

Quantum Information Theory

Prof. Dr. Antonio Acín

    Activities:

The main research objective of the group is to understand how quantum laws can be exploited to design novel protocols for information processing and communication, with an emphasis on quantum cryptography. The research effort goes from very abstract questions, such as security proofs of cryptographic protocols, to proposals for implementations of these protocols and collaborations with experimental groups. The group activities also cover research questions in other fields, such as quantum thermodynamics, quantum foundations, quantum optics and many-body physics.

    Collaborations:
  • Nicolas Brunner, Institute for Theoretical Physics, University of Geneva
  • J. Ignacio Cirac, Max-Planck-Institut für Quantenoptik
  • Nicolas Gisin, GAP-Optique, Université de Genève
  • Grup d'Informació Quàntica (GIQ), Universitat Autònoma de Barcelona
  • José Ignacio Latorre, Quantum Information and Computation (GIC-UB), Universitat de Barcelona
  • Lluis Masanes, University College London
  • Stefano Pironio, Université Libre de Bruxelles
  • Valerio Scarani, Centre for Quantum Technologies, Singapore

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Quantum Information Theory

Prof. Dr. Antonio Acín

Quantum Information Theory

Prof. Dr. Antonio Acín

    Proceedings & Book Chapters
  • Entanglement and non-locality in many-body systems: A primer J. Tura, A. B. Sainz, T. Grass, R. Augusiak, A. Acín, L. Lewenstein Proc. Int. School of Physics “Enrico Fermi” 191, “Quantum Matter at Ultralow Temperatures" 505-535. Ed. by M. Inguscio, W. Ketterle, S. Stringari, G. Roati (Amsterdam, 2016)
  • Single-shot adaptive measurement for quantum-enhanced metrology P. Palittpongarnpim, P. Wittek, B. C. Sanders Proc. SPIE 9980, 99800H (2016) Quantum Communications and Quantum Imaging XIV, August 2016, San Diego (USA)
  • SDP relaxations for non-commutative polynomial optimization M. Navascués, S. Pironio, A. Acín Handbook on semidefinite, conic and polynomial optimization, 601-634 M. F. Anjos, J. B. Lassere (eds.) New York: Springer, 2012
    International Series in Operations Research & Management Science, vol. 166
  • Informació quàntica o com utilitzar les paradoxes quàntiques A. Acín Certesa simulada: noves fronteres de la ciència, l'art i el pensament, 175-179 Barcelona: Ara Llibres, Arts Santa Mònica, 2010
    Articles in Magazines
  • La certeza del azar cuántico A. Acín Investigación y ciencia 424, 10-11 (2012)
  • Información cuántica A. Acín Lychnos 5, 60-65 (2011)
    Invited Talks
  • Quantum cryptography A. Acín EURESCO IQING 03, Munich, Germany, December 2003
    Talks
  • Ruling out static latent homophily in citation networks P. Wittek, S. Darányi, G. Nelhans Scientometrics 110, 765-777 (2017)
  • Data-driven estimation of blood pressure using photoplethysmographic signals S. C. Gao, P. Wittek, L. Zhao, W. J. Jiang 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), August 2016, Orlando (USA)
  • Space-QUEST: experiments with quantum entanglement in space R. Ursin, T. Jennewein, J. Kofler, J. M. Perdigues, L. Cacciapuoti, C. J. de Matos, M. Aspelmeyer, A. Valencia, T. Scheidl, A. Fedrizzi, A. Acín, C. Barbieri, G. Bianco, C. Brukner, J. Capmany, S. Cova, D. Giggenbach, W. Leeb, R. H. Hadfield, R. Laflamme, N. Lutkenhaus, G. Milburn, M. Peev, T. Ralph, J. Rarity, R. Renner, E. Samain, N. Solomos, W. Tittel, J. P. Torres, M. Toyoshima, A. Ortigosa-Blanch, V. Pruneri, P. Villoresi, I. Walmsley, G. Weihs, H. Weinfurter, M. Zukowski, A. Zeilinger 59th International Astronautical Congress (IAC) 2008, Glasgow, United Kingdom, 29 September-3 October 2008
  • Correlaciones cuanticas y criptografía A. Acín, L. Masanes, N. Gisin XXIX Bienal de Física, Madrid, July 2003
    Posters
  • Key destillation from Gaussian states by Gaussian operations M. Navascues, J. Bae, I. Cirac, M. Lewenstein, A. Sanpera, A. Acín Continuous Variables Quantum Information Processing, Veilbronn, Germany, April 2004
  • Quantum cryptography protocols more robust against photon number spliting attacks V. Scarani, A. Acín, G. Ribordy, N. Gisin Conference on Quantum Information, Erice, Italy, March 2003
    PhD Theses
  • Thermodynamics and quantum correlations M. Perarnau
  • Impact of imperfections on correlation-based quantum information protocols E. Passaro
  • From quantum foundations to quantum information protocols and back G. de la Torre Carazo
  • Characterizing and witnessing multipartite correlations: from nonlocality to contextuality A. Sainz
  • Experimental tools for quantum networking operations with single photons and single ions J. Huwer
  • Intrinsic randomness in non-local theories: quantification and amplification C. Dhara
  • Device-independent information protocols: Measuring dimensionality, randomness and nonlocality R. Gallego
  • Entanglement and non local correlations: Quantum resources for information processing G. Prettico
  • Resources for quantum information tasks: from the bipartite to the multipartite scenario M. Almeida
  • Entanglement and classical correlations in many-body systems A. García
  • Entanglement: from its mathematical description to its experimental observation D. Cavalcanti
  • Quantum information in infinite dimensional hilbert spaces M. Navascués
  • Entanglement and quantum cryptography J. Bae

Quantum Information Theory

Prof. Dr. Antonio Acín