University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Thursday, September 27th 2018
3:35 pm:
Physics and Astronomy Colloquium in Physics Tate B50
Speaker: Raymond Jeanloz, UC Berkeley
Subject: Pressure as a Probe for Atoms, Molecules and Planets
Refreshments in atrium after the Colloquium

Experiments using diamond anvils and the largest lasers in the world can exceed the atomic unit of pressure, profoundly changing the nature of atom structure and chemical bonding. Laboratory studies of the metallic hydrogen and helium that dominate large-planet (Jupiter, Saturn) and stellar interiors, and of new forms of ice that comprise icy giant planets (Neptune, Uranus), are complemented by experiments converting simple metals into ionic salts and taking elements to the statistical-atom (Thomas-Fermi-Dirac) regime. Interesting in their own right, and as validation of first-principles quantum simulations, these experiments also inform us about the origins and evolution of planets.

Faculty Host: Cynthia Cattell

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