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ics Colloquium
Friday, October 26, 2001
4:00 PM
Physics Building, Room 204
Note special time.
G. 't Hooft [Host: P. K. Kabir]
University of Utrecht, Netherlands
"How does God Play Dice?
(Speculations about Quantum Mechanics at the Planck scale)"
Attempts to arrive at consistent theories combining Quantum Mechanics with General Relativity not only require new concepts of space, time and matter, such as the ideas that lead to Superstring Theory, D-brane theory and M-theory, but they may also require a reconsideration of what Quantum Mechanics itself really is about. Although completely deterministic scenarios appear to be ruled out by the Bell inequalities, it is nevertheless worth-while to investigate a set-up where we start with a deterministic theory and add to this the notion of information loss. Although models proposed so-far all show deficiencies of some sort which makes them unrealistic for describing the real world, these models do show how chaotic phenomena in a deterministic theory might be suspected to lie at the basis of the quantum nature of our world.

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