William balance wheel
William G. Unruh (born August 21, 1945 in Winnipeg , Manitoba ; also Bill Unruh ) is a Canadian theoretical physicist and discoverer of the Unruh effect .
Life
He studied first at the University of Manitoba ( Bachelor of Science 1967) and then at Princeton University , New Jersey ( Master of Arts 1969), where he received his doctorate in 1971.
In 1974 he was appointed assistant professor at McMaster University . In 1976 he moved to the University of British Columbia , where he has been a professor since 1982. In 1985, Unruh was appointed first director of the “Cosmology and Gravity” program of the Canadian Institute for Advanced Research (CIAR) (until 1996). He is also the Distinguished Visiting Research Chair at the Perimeter Institute . In 1978 he received a research grant from the Alfred P. Sloan Foundation ( Sloan Research Fellowship ).
research
Unruh has made pioneering contributions to the understanding of gravity , black holes , cosmology and the fundamentals of quantum mechanics . The best known is his prediction, known as the Unruh effect , that an accelerated observer would perceive what would be defined as a vacuum in an inertial system as a heat bath with a temperature (and the corresponding blackbody radiation ) dependent on the acceleration .
He is currently working on the gravitational properties of cosmic strings , aspects of quantum gravity to understand the earliest moments in the universe, and questions from quantum information theory .
Unruh also deals with acoustics (he gave lectures on the physics of musical instruments) and in 1981 proposed an acoustic analogue to black holes, “ sonic black holes ” (called “dumb holes”), which occur in liquids that are in Move areas spatially separated by an acoustic "event horizon" once at a speed below the local speed of sound, and on the other side at supersonic speed.
Awards
Unruh has received numerous awards and prizes for his research, including the Rutherford Medal of the Royal Society of Canada (1982), the Herzberg Medal of the Canadian Association of Physicists (1983), the Killam Research Prize of the University of British Columbia (1990) , a CAP / CRM Prize in Mathematical Physics (1995) and the Willis E. Lamb Prize (2019).
He is a member of the Royal Society of Canada , the American Physical Society and the Royal Society of London .
Publications
- William G. Unruh: Notes on Black Hole Evaporation . Phys. Rev. D 14 870, 1976 (English)
- William G. Unruh, Robert M. Wald : Time and the Interpretation of Canonical Quantum Gravity . Phys. Rev. D 40 2598, 1989 (English)
- William G. Unruh, Wojciech H. Zurek : Reduction of a wave packet in quantum Brownian motion . Phys. Rev. D 40 1071 (English)
- William G. Unruh, M. Choptuik: An introduction to the Multi-Grid Method for Numerical Relativists . General Rel. & Grav. 18 813, 1985 (English)
Web links
- Biography William G. Unruh. CIFAR(English).
- Homepage William Balance. University of British Columbia(English).
- William balance wheel. The Royal Society(English).
- Rutherford Memorial Medals 1982 - William G. Unruh. The Academies of Arts, Humanities and Sciences of Canada, archived from the original on October 7, 2006 .
- Unruh & Wald Fest - A Celebration of the Careers & 60th Birthdays of WG Unruh & RM Wald. ubc.ca, 2006, archived from the original on August 23, 2008 (English).
- Biographical interview with Unruh. Perimeter Institute, 2009(English, mp4, mp3).
Individual evidence
- ↑ Bill Unruh. Perimeter Institute, accessed April 12, 2019 .
| personal data | |
|---|---|
| SURNAME | Balance, William |
| ALTERNATIVE NAMES | Unruh, William G .; Balance, Bill |
| BRIEF DESCRIPTION | Canadian theoretical physicist |
| DATE OF BIRTH | August 21, 1945 |
| PLACE OF BIRTH | Winnipeg , Manitoba |