Educational Background

• Received the B.S., M.S., and Ph. D. degrees in electrical engineering from the University of Osaka Prefecture, Osaka, Japan in 1964, 1966 and 1971, respectively.

Professional Experience

Award

• Achievement award for optics and quantum electronics, JSAP Cultural award, Cyuugoku Shinbunsya ( a News paper Co. in Hiroshima area)

Research Topics

• Optical properties of semiconductor quantum-confined structures and their device applications

Office

• Department of Physics, Osaka University Office address: Toyonaka, Osaka 560-0043, Japan Office telephone: +81 6 6850 5350 (dial-in) Office facsimile: +81 6 6850 5351
• E-mail:

ACADEMIC DEGREE

• Type: Doctor of Engineering
• University: The University of Tokyo
• Date Obtained: December 1990

Educational Background

• April 1987 - September 1988: Department of Applied Physics, Graduate School of Engineering, The University of Tokyo, Ph. D. course April 1985 - March 1987: Department of Applied Physics, Graduate School of Engineering, The University of Tokyo, Master course April 1981 - March 1985: Department of Applied Physics, Faculty of Engineering, The University of Tokyo, Bachelor course

Professional Experience

• 2012 - present: Associate Trustee
• April 2010 - now: Vice Dean, Graduate School of Science, Osaka University January 2009 - now: Vice Director, Photon Pioneers Center, Osaka University December 2008 - now: Guest Professor, Shanghai Jiao Tong University, P.R.C.
• April 2007 - March 2009: Chair, Department of Physics, Osaka University May 2000 - now: Professor, Department of Physics, Osaka University May 2000 - March 2001: Concurrent Professor, Department of Physics, Tohoku University October 1997 - September 2000: Concurrent researcher, PRESTO (Precursory Research for Embryonic Science and Technology), Japan Science and Technology Agency August 1996 - April 2000: Associate Professor, Department of Physics, Tohoku University October 1993 - July 1996: Associate Professor, Department of Applied Physics, Osaka City University April 1990 - September 1993: Researcher, Basic Research Laboratories, NTT Corporation October 1988 - March 1990: Assistant Professor, Department of Applied Physics, The University of Tokyo

Award

• JSAP Award (1989), Japan Society of Applied Physics Marubun Award (2004), Marubun Research Promotion Foundation

Research Topics

• Theoretical condensed matter physics, laser physics, quantum optics, and nonequilibrium statistical physics

The research achievements that I have made are in the field of theoretical physics on condensed matters, quantum optics, and quantum electronics. In particular, I have been engaged in the followings.
1. Theory of low-dimensional excitons: I found for the first time that the optical absorption related to exciton scattering states in quasi-one dimension is qualitatively different from those of higher dimensional systems. This has become a standard knowledge in the field of optical condensed matter physics. Moreover, exciton-exciton interaction was analyzed with the new bosonization technique.
2. Theory of the Fermi-edge singularity (FES) in one-dimensional metals: With the use of the 2-band Tomonaga-Luttinger model, we evaluated the critical exponent of the FES, which is an anomaly of optical absorption and luminescence spectra, taking exact account of the electronic correlation.
3. Theory of exciton Mott transition and quantum pair condensation in electron-hole (e-h) systems: As the density of carries increases, the e-h systems change from insulating to metallic. This "exciton Mott transition" was for the first time described successfully by the dynamical mean field theory (DMFT). In addition, electron-hole pair condensation, exciton Bose-Einstein condensation and e-h BCS state, is extensively investigated by the self-consistent T-matrix approximation.
4. Microscopic theory of photoinduced structural phase transitions: New mechanism, called "photoinduced domino mechanism" was proposed to describe microscopically early stage of the photoinduced structural changes in solids. This domino theory is now one of the standard models of the photoinduced phase transitions.
5. Dynamical and stochastic theories of lasers: Chaotic and stochastic properties of lasers with a low-Q cavity were numerically and analytically analyzed. I proposed the Toda-oscillator model of lasers.
6. Theory of continuous measurement in quantum mechanics: Theory of the reduction of wave packet due to continuous measurement was constructed. Continuous photodetection process was analyzed as an example to find the way of decay of the photon number due to measurement backaction depends on the photon fluctuation.

MEMBERSHIP

• American Physical Society (life member)
  Physical Society of Japan
  Japan Society of Applied Physics

Laboratory HP

• 日本語ページ: http://wwwacty.phys.sci.osaka-u.ac.jp/~ogawa/cover.html
• 英語ページ: http://www.phys.sci.osaka-u.ac.jp/en/research_groups/group/03-1_ogawa/index.html

Educational Background

Professional Experience

Award

Research Topics

• Quantum information, Quantum optics

Laboratory HP

• http://www.qi.t.u-tokyo.ac.jp/

Educational Background

Professional Experience

Concurrent Positions

Award

• Young Scientist Award, `Researches on Quantum Info-Communication', awarded by Minister of Education, Culture, Sports, Science and Technology, (2005).
• Optics Paper Award, `Highly efficient single photon source using gated parametric downconversion', awarded by the Japanese Society of Applied Physics, (2006).
• JSPS PRIZE, `Realization of Quantum Information Processing and Communication Using Photons', Awarded by The Japan Society for the Promotion of Science (JSPS) (2010)

Research Topics

• Experiments on quantum optics, quantum information, and nano photonics.
  Past works involve the realization of an optical quantum circuit `Entanglement filter' and the four-photon interferometer beating the standard quantum limit.