>VITAE:
Masanao Ozawa is full professor at Graduate School of Information Sciences, Tohoku University, formerly professor at Nagoya. He is well known expert of Quantum Information, Quantum Measurements and Quantum Open Systems. His realization theorem for instruments is largely known.

Heisenberg's original formulation of the uncertainty principle as to the noise-disturbance trade-off in measurements published in 1927 was denied through the debate on the standard quantum limit on the gravitational-wave detection around 1988. Recently, an universally valid relation for noise-disturbance trade-off was found, and it has become clear that the new relation plays a role of the first principle to derive various quantum limits, some of which were obtained individually, on quantum measurements and quantum information processing in a unified treatment. This talk surveys the above development on the new formulation of uncertainty principle and its applications to quantum computing.