Professor
Department of Physics
ajm2010@columbia.edu
Millis Webpage

Research Interests

My research focus is theoretical condensed matter physics, especially the application of new theoretical ideas to actual experiments on novel materials including high temperature superconductors, ‘colossal’ magnetoresistance manganites, quasi one dimensional conductors and heavy fermion compounds. I also study the properties of artificially constructed systems including single molecular conductors and correlated electron heterostructures. Specific recent interests include new methods of computing the properties of interacting many-electron systems,optical conductivity as a probe of correlated electron physics; surface and interface physics of correlated electron compounds and nonequilibrium properties of correlated systems with application to ‘single-molecule’ conductors. Much of my work is done in close collaboration with experimental groups.

Selected Publications

• P. Werner, A. Comanac, Ld. Medici, M. Troyer, A.J. Millis, “Continuous-time solver for quantum impurity models”, Phys. Rev. Lett. 97, 076405/1-4 (2006).
• S. Okamoto, A. J. Millis, and N. A. Spaldin, “Lattice Relaxation in Oxide Heterostructures: LaTiO3/SrTiO3 Superlattices”, Phys. Rev. Lett. 97, 056802/1-4 (2006).
• A. Mitra, I. Aleiner, and A. J. Millis, “Semiclassical Analysis of the Nonequilibrium Local Polaron”, Phys. Rev. Lett. 94, 076404/1-4 (2005).
• S. Okamoto and A. J. Millis, “Electronic Reconstruction at a Mott-Insulator Band-Insulator Interface”, Nature 428, 630-632 (2004).
• A. V. Andreev, I. L. Aleiner, and A. J. Millis, “Dynamical Symmetry Breaking as the Origin of the Zero-dc-Resistance State in an ac-Driven System”, Phys. Rev. Lett. 91, 056803/1-4 (2003).