[1] Kanazawa Univ, Kanazawa, Japan
[2] IEEE Internet Tech Comm ITC, Thessaloniki, Greece
[3] MIT, Dept Phys, Condensed Matter Theory, Cambridge, MA USA
[4] NLNOG Fdn, Amsterdam, Netherlands
[5] IBM Res, Yorktown Hts, NY USA
[6] Chair IEEE ComSoc Commun Informat Syst Secur Tech, Zurich, Switzerland
[7] Tech Comm Quantum Commun & Informat Technol QCIT, Zurich, Switzerland
[8] Soc Ind & Appl Math SIAM, Electrochem Soc ECS, Swiss Phys Soc SPS, Philadelphia, PA USA
[9] European Phys Soc EPS, Mulhouse, France
[10] Tsinghua Univ, Beijing, Peoples R China
[11] Beijing Acad Quantum Informat Sci, Beijing, Peoples R China