1. Zentrum Mathematik, M5, Technische Universität München, Boltzmannstrasse 3, 85748 Garching, Germany
2. CNRS, Laboratoire de Physique Théorique, IRSAMC, Université de Toulouse, UPS, F-31062 Toulouse, France
3. Institute of Theoretical and Applied Informatics, Polish Academy of Sciences, ulica Bałtycka 5, 44-100 Gliwice, Poland
4. Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, ulica prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
5. Faculty of Applied Physics and Mathematics, National Quantum Information Center, Gdańsk University of Technology, 80-233 Gdańsk, Poland
6. Center for Theoretical Physics, Polish Academy of Sciences, aleja Lotników 32/46, 02-668 Warszawa, Poland