[Earnest-dist] Colloquium announcement

[Ronald Grant]

The College Relations Office just learned of a colloquium that is taking place [cid:image002.jpg at 01CA4D83.9A4D1D40] [cid:image002.jpg at 01CA4D83.9A4D1D40] today, Thursday, October 15,  at 4:00 p.m., in Kinard Auditorium G01. Internationally-renowned physicist, Dr. Antony Valentini, who has recently joined the Clemson faculty, and was formerly associated with the  Imperial College in London and the Perimeter Institute of Theoretical Physics, Ontario, Canada will be speaking. Valenti's presentation is titled Beyond the Quantum.  An abstract follows.  Light refreshments will be served after the presentation.
abstract:  According to hidden-variables theories, quantum physics is a special 'equilibrium' case of a much wider 'non-equilibrium' physics. We describe the search for that wider physics in a cosmological context. The hypothesis that the universe began in a state of quantum non-equilibrium is shown to have observable consequences. In de Broglie-Bohm theory on expanding space, relaxation to quantum equilibrium is shown to be suppressed for field modes whose quantum time evolution satisfies a certain inequality, resulting in a 'freezing' of early non-equilibrium for these particular modes. For an early radiation-dominated expansion, the inequality implies a corresponding physical wavelength that is larger than the (instantaneous) Hubble radius. These results make it possible, for the first time, to make quantitative predictions for deviations from quantum theory. We consider, in particular, corrections to inflationary predictions for the cosmic microwave background, and the possibility of finding relic cosmological particles that violate the laws of quantum mechanics.

[cid:image003.jpg at 01CA4D83.9A4D1D40][cid:image004.jpg at 01CA4D83.9A4D1D40]

Dr. Antony Valentini






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