Johnston Research Group
Department of Physics and Astronomy, The University of Tennessee, Knoxville
Prof. Steven Johnston
I am the Dr. Elizabeth M. Bains and Dr. James A. Bains Professor of Physics and Astronomy and a member of the Joint Institute for Advanced Materials . My research interests lie in condensed matter physics with a focus on applying numerical methods to strongly correlated electrons, multi-orbital systems, and electron-boson interactions. I have a specific interest in studying high-temperature superconductivity in both the iron-pnictides and cuprates. I often work towards making direct contact with spectroscopies such as angle-resolved photoemission, scanning tunneling microscopy, optical conductivity, and resonant inelastic x-ray scattering, and collaborate closely with experimentalists in order to unravel the meaning of results obtained using these complicated techniques.
Brief Vita
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Current Group Members
Dr. Benjamin Cohen-Stead
Post Doctoral Researcher — Ben completed his Ph.D. at the University of California, Davis and is an expert in quantum Monte Carlo simulations of electron-phonon coupled systems.
Jinu Thomas
PhD Student — Jinu is a physics Ph.D. student at the University of Tennessee, Knoxville. His current research interests lay in modeling resonant inelastic x-ray scattering experiments using advanced numerical methods and their application to studying quantum magnetism and superconductivity in low-dimensional systems.
James Neuhaus
PhD Student — James is a physics Ph.D. student at the University of Tennessee, Knoxville. His current research interests lay in applications of quantum Monte Carlo methods to modeling resonant inelastic x-ray scattering spectra.
Andy Tanjaroon Ly
PhD Student — Andy is a physics Ph.D. student at the University of Tennessee-Knoxville. His current research interests include using Variational Monte Carlo in conjunction with machine learning to investigate strongly correlated electron systems, such as high-Tc cuprates.
Sohan Malkaruge Costa
PhD Student — Sohan is a physics Ph.D. Student at University of Tennessee, Knoxville. His current research interests lay in simulating condensed matter systems using advanced numerical methods and mean field approximation.
Debshikha Banerjee
PhD Student — I am a physics Ph.D. student at the University of Tennessee, Knoxville. Her research interest lies in investigating correlated electron systems with the help of resonant inelastic X-ray scattering using advanced numerical techniques. Currently, she is focusing on understanding the physics of SSH-like electron-phonon interactions using DMRG methods.