Illustration of the 2-Electron Model (image) University of Chicago Caption David Mazziotti, a professor in chemistry at the University of Chicago, has solved a longstanding problem in quantum theory: how to compute the energies and properties of any atom or molecule in terms of just two of its electrons. Credit Kasra Naftchi-Ardebili Usage Restrictions News organizations may use this image in connection with news stories about the research of David Mazziotti. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.