B.S. Mechanical Engineering, Georgia Tech 2010.

• DOE Computational Sciences Graduate Fellowship, 2011-2015
• NSF Graduate Fellowship (declined), 2011-2014
• Young Researcher, Lindau Nobel Laureate Meeting in Physics, 2012

• Intrinsic numerical approximation techniques.
• Krylov/Newton-Raphson and other iterative methods.
• Rank reduction techniques for the electronic wavefunction.

``Tensor Hypercontraction Density Fitting. I. Quartic Scaling Second- and Third-order Møller-Plesset Perturbation Theory,'' E. G. Hohenstein, R. M. Parrish, and T. J. Martínez, J. Chem. Phys. 137, 044103 (2012)

``Discrete Variable Representation in Electronic Structure Theory: Quadrature Grids for Least-Squares Tensor Hypercontraction,'' R. M. Parrish, E. G. Hohenstein, T. J. Martínez, and C. D. Sherrill, J. Chem. Phys. 138, 194107 (2013)

``Quantum-Mechanical Analysis of the Energetic Contributions to π Stacking in Nucleic Acids Versus Rise, Twist, and Slide,'' T. M. Parker, E. G. Hohenstein, R. M. Parrish, N. V. Hud, and C. D. Sherrill, J. Am. Chem. Soc. 135, 1306-1316 (2013)

``Communication: Tensor Hypercontraction. III. Least-Squares Tensor Hypercontraction for the Determination of Correlated Wavefunctions,'' E. G. Hohenstein, R. M. Parrish, C. D. Sherrill, and T. J. Martínez, J. Chem. Phys. 137, 221101 (2012)

``Tensor Hypercontraction. II. Least-Squares Renormalization,'' R. M. Parrish, E. G. Hohenstein, T. J. Martínez, and C. D. Sherrill, J. Chem. Phys. 137, 224106 (2012)

``Assessment of the Performance of Tuned Range-Separated Hybrid Density Functionals in Predicting Accurage Quasiparticle Spectra,'' T. Körzdörfer, R. M. Parrish, N. Marom, J. S. Sears, C. D. Sherrill, and J. L. Brédas, Phys. Rev. B 86, 205110 (2012)

``On the Relationship Between Bond-Length Alternation and Many-Electron Self-Interaction Error,'' T. Körzdörfer, R. M. Parrish, J. S. Sears, C. D. Sherrill, and J. L. Brédas, J. Chem. Phys. 137, 124305 (2012)

``Do Deuteriums Form Stronger CH-π Interactions?,'' C. Zhao, R. M. Parrish, M. D. Smith, P. J. Pellachia, C. D. Sherrill, and K. D. Shimizu, J. Am. Chem. Soc. 134, 14306-14309 (2012)

``PSI4: An Open-Source Ab Initio Electronic Structure Program,'' J. M. Turney, A. C. Simmonett, R. M. Parrish, E. G. Hohenstein, F. A. Evangelista, J. T. Fermann, B. J. Mintz, L. A. Burns, J. J. Wilke, M. L. Abrams, N. J. Russ, M. L. Leininger, C. L. Janssen, E. T. Seidl, W. D. Allen, H. F. Schaefer, R. A. King, E. F. Valeev, C. D. Sherrill, and T. D. Crawford, WIREs Comput. Mol. Sci. 2, 556-565 (2012)

``Role of Long-Range Intermolecular Forces in the Formation of Inorganic Nanoparticle Clusters,'' G. V. Gibbs, T. D. Crawford, A. F. Wallace, D. F. Cox, R. M. Parrish, E. G. Hohenstein, and C. D. Sherrill, J. Phys. Chem. A 115, 12933-12940 (2011)

``Large-scale Symmetry-adapted Perturbation Theory Computations Via Density Fitting and Laplace Transformation Techniques: Investigating the Fundamental Forces of DNA-intercalator Interactions,'' E. G. Hohenstein, R. M. Parrish, C. D. Sherrill, J. M. Turney, and H. F. Schaefer, J. Chem. Phys. 135, 174107 (2011)