Classical Computation, Correlated Systems, and Higher Education<\/strong><\/p>\n My research primarily focuses on three key areas, statistical mechanics models of classical computation, strongly correlated systems, and new models for higher education. In the context of computational problems, I have worked together with my colleagues Claudio Chamon and Eduardo Mucciolo to develop a new approach to reversible classical computation by mapping a universal reversible classical logic circuit into a quantum planar vertex model that encodes the result of the computation in its ground state. In addition, I am exploring the connection between the problem of single gene transcription and classical computation. In terms of correlated systems, I am exploring models of marginal Fermi liquid behavior at Lifshitz transitions in models of correlated systems, which support the evolution from hole to electron Fermi surfaces. Finally, during my work as an University administrator I explored new models of Higher Education that address an indisputable structural issue with the current model of research-intensive universities.<\/p>\n \u201cQuantum vertex model for reversible classical computing\u201d, C. Chamon, E. R. Mucciolo, A. E. Ruckenstein, and Z.-C. Yang,\u00a0<\/span>Nature Communications<\/em>\u00a0<\/span>8<\/strong>, May 12, 15303 (2017).<\/p>\n \u201cThermodynamic and Kinetic Modeling of Transcriptional Pausing\u201d, Vasisht R. Tadigotla, Daibhid O\u2019Maoileidigh, Anirvan M. Sengupta, Vitaly Epstein, Richard H. Ebright, Evgeny Nudler, and Andrei E. Ruckenstein,\u00a0<\/span>PNAS<\/em>\u00a0<\/span>103<\/strong>, 4439 (2006).<\/p>\n \u201cPhenomenology of the Normal State of Cu-O High-Temperature Superconductors\u201d, C. M. Varma, P. B. Littlewood, S. Schmitt-Rink, E. Abrahams, and A. E. Ruckenstein,\u00a0<\/span>Phys. Rev. Lett.<\/em>\u00a0<\/span>63<\/strong>, 1996 (1989); 64, 497 (1990) (E).<\/p>\n \u201cA Mean Field Theory of High-Tc Superconductivity: The Superexchange Mechanism\u201d, A. E. Ruckenstein, P. J. Hirschfeld, and J. Appel,\u00a0<\/span>Phys. Rev. B<\/em>\u00a0<\/span>36<\/strong>, 857 (1987).<\/p>\n \u201cNew Functional Integral Approach to Strongly Correlated Fermi Systems: The Gutzwiller Approximation as a Saddle Point\u201d, G. Kotliar, A. E. Ruckenstein,\u00a0<\/span>Phys. Rev. Lett.\u00a0<\/span><\/em>57<\/strong>, 1362 (1986).<\/p>\nSelected Publications:<\/h3>\n