George Ruppeiner

Professor Ruppeiner’s research has focused on using curved space geometry to represent physical situations in which many atoms cooperate to produce a few independent average properties, i.e., thermodynamics.  Although the laws of thermodynamics make no reference to atoms, thermodynamics nevertheless yields information about microscopic properties.  These ideas have been applied to fluid systems, to magnets, and to black holes.  In the last case, the properties of the "atoms" are entirely unknown.