York-Peng E. Yao

Birthdate

  • September 11, 1937, Canton, China (naturalized U. S. citizen).

    Education

  • 1960, BSc. (with highest honor), University of California, Berkeley, major in engineering physics.
  • 1963, M. S., Harvard University.
  • 1964, Ph. D. (Grand Marshall), Harvard University.

    Honors

  • Phi Beta Kappa, Tau Beta Pi, Sigma Xi, Fellow of American Physical Society.

    Postdoctoral Appointment

  • 1964-66, Institute for Advanced Study, Princeton.

    Positions

  • 1966-72, Assistant Professor of Theoretical Physics, The University of Michigan, Ann Arbor.
  • 1972-78, Associate Professor, The University of Michigan, Ann Arbor.
  • 1973-74 , (sabbatical), Visiting Professor, Institute of Theoretical Physics, SUNY at Stony Brook.
  • 1978-, Professor, The University of Michigan, Ann Arbor.
  • 1984 (summer), Visiting Professor, Research Institute for Fundamental Physics, Kyoto.
  • 1993 (summer), Visiting Professor, Academia Sinica, Taipei, Republic of China.
  • 1994 (summer), Visiting Professor, University Autonoma, Madrid, Spain.
  • 1995-97 (summers, for two weeks or more), Visiting Professor, Seoul University, Korea; Institute of Theoretical Physics, Beijing, China; Research Institute for Fundamental Physics, Kyoto, Japan; Chiao Tung University, Taiwan; etc.

    Research Activities

    They are primarily in quantum field theory and particle physics. My focus has been how to use quantum field theory as a tool to formulate general framework and to extract physical consequences.

    I have been working on problems where there are various scales, such as disparate masses. I have formulated theoretical framework to deal with such problems in general.

    I am also very interested in the issue of masses, which is a window into the extension of the Standard Model. This is very much tied up with effective field theory and in turn with what I described in the last paragraph.

    Anticipating new precision experimental results from b-factories and other facilities, I have developed with a post-doctoral fellow a general way to evaluate two-loop Feynman diagrams, which fully respects the mass structure and the kinematics of the process under consideration.

    Sponsored Research

    I share a DoE theory contract ($600,000 for 98-99 fiscal year) with R. Akhoury, M. B. Einhorn, K. Freese, G. L. Kane and R. Stuart. We have four postdoctoral fellows and quite a few visitors of short durations.