>VITAE:
PhD at MIT, professor of Electrical and Computer Engineering and Theoretical quantum optics, Quantum Communication Award of Tanajawa University, OSA Fellow and APS Fellow, Horace P. Yuen is well recognized expert of quantum optics, quantum communication theory, quantum measurements, quantum devices, quantum cryptography, and new computers based on optical technologies. Very popular his works on squeezed states and on breaching the standard quantum limit.

The “Impossibility Proof” of unconditionally secure quantum bit commitment will be reviewed and its unbridgeable gaps indicated. It will be shown that the use of anonymous states together with split entangled pairs will lead to a perfectly concealing protocol, thus easily extended to one which is also epsilon-binding. The use of local quantum teleportation also leads to a protocol that is both epsilon-concealing and epsilon-binding. Other possibilities and their practical implementation will be discussed.