Theodore Jacobson
Theodore "Ted" Jacobson (born November 27, 1954 ) is an American physicist who deals with astrophysics and gravitational physics.
Jacobson studied at Reed College (bachelor's degree in 1977) and received his doctorate in 1983 from the University of Texas at Austin with Cécile DeWitt-Morette . He then worked as a post-doc in 1982/83 with a Fulbright scholarship at the Technion with Lawrence Schulman , in 1984 in Paris ( Observatory von Meudon and Institut Henri Poincaré ), from 1984 to 1986 at the University of California, Santa Barbara (UCSB) and from 1986 to 1988 at Brandeis University .
In 1988 he became Assistant Professor, 1993 Associate Professor and 1998 Professor of Physics at the University of Maryland .
He was a visiting scientist at UCSB, the University of Utrecht (1995/1996), the University of Paris VII , the Erwin Schrödinger Institute for Mathematical Physics and the University of Bern .
In 1986 he played a role in the early years of loop quantum gravity when he and Lee Smolin formulated the Wheeler-DeWitt equation of quantum cosmology in the loop variables introduced by Abhay Ashtekar and found exact loop solutions to the equation.
In 1995, he proposed that gravity is a thermodynamic emergent effect resulting from a holographic description of gravity and the thermodynamics of black holes and event horizons in general, introduced by Jacob Bekenstein and others . According to Jacobson, the equations of the general theory of relativity then result as a thermodynamic equation of state . He suspects an underlying theory of discrete basic elements of space-time (similar to the classic connection between thermodynamics and statistical mechanics) with the creation of new elements in the context of the expansion of the universe.
In 2004 he became a Fellow of the American Physical Society .
Fonts
- Jacobson Trans-Planckian redshifts and the substance of the space-time river , Progress Theor. Phys. Suppl., Volume 136, 1999, p. 1.
- Ted Jacobson Thermodynamics of Spacetime - The Einstein equation of state , Phys. Rev. Lett., Vol. 75, 1995, p. 1260
- Jacobson, Christopher Eling, Raf Guedens Non equilibrium thermodynamics of spacetime , Phys. Rev. Lett., Volume 96, 2006, p. 121301 ,
- Jacobson, B. Hu (Editor): Directions in General Relativity , Vol. 2, Cambridge University Press 1993
Web links
- Theodore A. (Ted) Jacobson. (English, personal website).
- Jacobson, Theodore. Department of Physics, University of Maryland(English).
Individual evidence
| personal data | |
|---|---|
| SURNAME | Jacobson, Theodore |
| ALTERNATIVE NAMES | Jacobson, Ted (nickname) |
| BRIEF DESCRIPTION | American physicist |
| DATE OF BIRTH | November 27, 1954 |