B
Bobby G. Sumpter
Researcher at Oak Ridge National Laboratory
Publications - 652
Citations - 28014
Bobby G. Sumpter is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Polymer & Graphene. The author has an hindex of 60, co-authored 619 publications receiving 23583 citations. Previous affiliations of Bobby G. Sumpter include University of Florida & Cornell University.
Papers
More filters
Journal ArticleDOI
Investigation of the nanoscale self-assembly of donor-σ-acceptor molecules
TL;DR: In this article, the authors explore the nature of the interactions that lead to the self-assembly of a new class of functionalized donor-sigma-acceptor molecules, 1-aza-adamantanetriones (AATs), and the consequences of molecular structure on the resulting supramolecular systems.
Journal ArticleDOI
Learning in continuous action space for developing high dimensional potential energy models
Sukriti Manna,Troy D. Loeffler,Rohit Batra,Suvo Banik,Henry Chan,Bilvin Varughese,Kiran Sasikumar,Michael Sternberg,Tom Peterka,Mathew J. Cherukara,Stephen K. Gray,Bobby G. Sumpter,Subramanian K. R. S. Sankaranarayanan +12 more
TL;DR: In this paper , a decision tree based reinforcement learning (RL) strategy is proposed to solve the problem of continuous action space problems. But, it is not applicable to many other physical science problems involving search over continuous action spaces.
Journal ArticleDOI
Molecular Dynamics Simulation of Polymer Nanoparticle Collisions: Internal Reorganization and Translation−Vibration Coupling
TL;DR: In this article, the center-of-mass separation coordinate is closely coupled to other vibrational coordinates and the vibrations in the center of mass separation are coupled to the intraparticle reorganization, leading to a strong propensity of particle collisions to result in attachment and particle dimer formation.
Journal ArticleDOI
Dynamics of a paraffin crystal
Guanghe L. Liang,Guanghe L. Liang,Donald W. Noid,Donald W. Noid,Bobby G. Sumpter,Bobby G. Sumpter,Bernhard Wunderlich,Bernhard Wunderlich +7 more
TL;DR: In this paper, a series of simulations on a supercomputer of the molecular motion of a pentacontane (C50H102) crystal containing close to 10000 atoms is presented.
Journal ArticleDOI
Quantifying energetics of topological frustration in carbon nanostructures
TL;DR: In this paper, a graph theoretical formalism is developed to account for the fact that sp2 carbon can become spin ordered or generate free radicals for purely topological reasons, and the graph theory method is combined with open-density functional theory calculations to establish the existence of a universal energy of frustration term that is shown to greatly improve the description of carbon nanostructure energetics using classical force-fields.