TY - CHAP A1 - Freudenberg, Wolfgang A1 - Ohya, Masanori A1 - Watanabe, Noboru T1 - Quantum logical gates realized by beam splittings T2 - Quantum information and computing, international conference on "Quantum Information 2003" held in Tokyo University of Science/Tokyo (Japan) from 1 to 3 November 2003 Y1 - 2006 SN - 981-256-614-7 SP - 131 EP - 148 PB - World Scientific CY - Singapore [u.a.] ER - TY - CHAP A1 - Freudenberg, Wolfgang A1 - Ohya, Masanori A1 - Watanabe, Noboru T1 - On mathematical treatment of quantum communication gate on Fock space Y1 - 2006 ER -