Expertise

First QKD at 1550 nm, (1999)

The scientific and technical foundation of quCertify AB rests on decades of high-impact research by its founders, team members, and close collaborators in quantum communication, quantum optics, quantum sensing, and secure information technologies. This foundation encompasses pioneering work on single-photon systems, entanglement-based protocols, and emerging quantum sensing platforms utilizing solid-state defects. The following selection of publications provides a representative snapshot of the most recent and significant contributions, illustrating the depth of expertise, interdisciplinary approach, and ongoing innovation that propel the company’s technology development in communication, sensing, and quantum-enabled infrastructures.

  • M. Bourennane, F. Gibson, A. Karlsson, A. Hening, P. Jonsson, T. Tsegaye, D. Ljunggren, and E. Sundberg, Experiments on long wavelength (1550nm) “plug and play” quantum cryptography systems, Optica Express 4, 383 (1999);
  • N. J. Cerf, M. Bourennane, A. Karlsson, and N. Gisin, Quantum key distribution using d-level systems, Physical Review Letters 88 127902 (2002);
  • D, Ljunggren, M. Bourennane, A. Karlsson, Authority-based user authentication in quantum key distribution, Physical Review A. 62, 022305 (2000);
  • Ch. Schmid, P. Trojek, M. Bourennane, Ch. Kurtsiefer, M. Żukowski, H. Weinfurter, Experimental Single Qubit Quantum Secret Sharing, Physical Review Letters 95, 230505 (2005);
  • J. Bogdanski, N. Rafiei and M. Bourennane, Experimental quantum secret sharing using telecommunication fiber, Physical Review A 78, 062307 (2008);
  • J. Ahrens, P. Badzia̧g, A. Cabello, and M. Bourennane, Experimental device-independent tests of classical and quantum dimensions, Nature Physics volume 8, pages 592–595 (2012);
  • J. Jogenfors, A.M. Elhassan, J. Ahrens, M. Bourennane, and J.Å. Larsson, Hacking the Bell test using classical light in energy-time entanglement–based quantum key distribution, Science Advances 1 (11), e1500793 (2015);
  • P. Mironowicz, A. Tavakoli, A. Hameedi, B. Marques, M. Pawłowski, and M. Bourennane, Increased certification of semi-device independent random numbers using many inputs and more post-processing, New Journal of Physics 18 (6), 065004 (2016);
  • M. Smania, A.M. Elhassan, A. Tavakoli, and M. Bourennane, Experimental quantum multiparty communication protocols, npj Quantum Information 2, 16010 (2016);
  • P. Mironowicz, M. Grünfeld, and M. Bourennane, Generalized measurements on qubits in quantum randomness certification and expansion, Physical Review Applied 22 (4), 044041 (2024).