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Year of Light and Centenary of Relativity

“Quantum Theory of Gravitation”

Prof. Dr. Bayram Tekin
Middle East Technical University

Date: May 20, 2015 (Wednesday)
Time: 15:40
Place: Physics Department Seminar Room SA 240

ABSTRACT- “Quantum Gravity” is a putative name for a theory that combines the principles of Quantum Mechanics and General Theory of Relativity. Quantum mechanics is based on the notion of a state-such as represented by a wave function-from which probabilities for the out-comes of possible experiments are predicted. Gravity, on the other hand, is based on certain curved spaces and purely deterministic, in the sense that same initial conditions lead to the same final results and no probability is involved.  Both theories are almost spotless in their respective domains of application, but they are not sufficient alone when gravity is extremely strong as in the case of Big Bang or black holes. We shall talk about the difficulties in “quantizing” gravity and the possible approaches to get “quantum gravity”.