Professor of Physics
Professor of Physics
Ph.D., Duke University
B.S., Louisiana State University
Go to Dr. Ruppeiner's personal homepage.
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. The curved space geometry is very revealing in this connection.
Professor Ruppeiner teaches courses ranging from computational physics in Java to introductory astronomy.
Computer Simulation Methods
Thermodynamic curvature: pure fluids to black holes, G. Ruppeiner, J. Phys.: Conf. Series 410, 012138 (2013). arXiv:1210.2011
Thermodynamic Geometry, Phase Transitions, and the Widom Line, G. Ruppeiner, A. Sahay, T. Sarkar, G. Sengupta, Phys. Rev. E 86, 052103 (2012). arXiv:1106.2270v2 (2011).
Thermodynamic curvature from the critical point to the triple point, G. Ruppeiner, Phys, Rev. E 86, 021130 (2012). arXiv:1208.3265 (2012).
Thermodynamic curvature measures interactions, G. Ruppeiner, Am. J. Phys. 78, 1170 (2010). arXiv:1007.2160 (2010).
Ruppeiner, G. (2008). “Thermodynamic curvature and phase transitions in Kerr-Newman black holes," Physical Review D 78, 024016.
Ruppeiner, G. (2007). “Stability and fluctuations in black hole thermodynamics,” Physical Review D 75, 024037.
Ruppeiner, G. (2007). "Black Holes: fermions at the extremal limit?" arXiv:0711.4328 [gr-qc].
Ruppeiner, G. (2005). “Riemannian geometry of thermodynamics and systems with repulsive power-law interactions,” Physical Review E 72, 016120.
Measuring the Electrical Conductivity of the Earth, B. Avants*, Dustin Soodak*, and George Ruppeiner, American Journal of Physics 67, 593 (1999).
Riemannian Geometric Approach to Critical Points: General Theory, G. Ruppeiner, Phys. Rev. E 57, 5135-4145 (1998)
Edited "Directory of Research in Physics/Astronomy at Primarily Undergraduate Institutions," Fourth Editon, Pulished by Council on Undergraduate Research, 1997.
"Equation of State of Large Gravitationg Gas Clouds," G. Ruppeiner, The Astrophysical Journal, 464, 547 (1996).
"Test of the Biot-Savart law to distances of fifteen meters, G. Ruppeiner, M. Grossman*, and A. Tafti*, American Journal of Physics, 64, 698 (1996).
"Riemannian Geometry of Thermodynamics and Critical Phenomena", G. Ruppeiner, Atti Accademia Peloritana Del Pericolanti, Supplemento No. 1, LXX, 101-133.
"Antisymmetric Free Energy from Riemannian Geometry", G. Ruppeiner, Phys. Rev. E47,,934-938 (1993)