SUNDIALS is a SUite of Nonlinear and DIfferential/ALgebraic equation Solvers. It consists of the following six solvers: CVODE, solves initial value problems for ordinary differential equation (ODE) systems; CVODES, solves ODE systems and includes sensitivity analysis capabilities (forward and adjoint); ARKODE, solves initial value ODE problems with additive RungeKutta methods, include support for IMEX methods; IDA, solves initial value problems for differentialalgebraic equation (DAE) systems; IDAS, solves DAE systems and includes sensitivity analysis capabilities (forward and adjoint); KINSOL, solves nonlinear algebraic systems.
Presentations
2024
SIAM meeting on parallel methods, Baltimore, MD, March, 2024
Invited talk: E. Gull, Tensor Trains — Replacing Monte Carlo with Tensor Decompositions
2023
Annual Meeting of the Materials Research Society, Boston, MA, November 2023
Invited talk: E. Gull, From Mathematics to Algorithms—Obtaining Spectral Information from Realand ImaginaryTime Response Functions
University of California, Santa Barbara, October 2023
Talk: E. Gull, Spectral Properties of Response Functions
Umich Applied Mathematics Seminar, October 2023
Talk: E. Gull, On the Positive Definiteness of Response Functions in the Time Domain
University of Hamburg & Université Grenoble Alpes, CEA, September 2023
Talk: A. Erpenbeck, Tensor Train Decomposition as an Alternative to Monte Carlo in Quantum Impurity Solvers
University of Freiburg, August 2023
Talk: A. Erpenbeck, Tensor Train Decomposition: A Novel Development for Quantum Impurity Solvers
University of Fribourg, August 2023
Talk: A. Erpenbeck, Tensor Train Decomposition as an Alternative to Monte Carlo in Quantum Impurity Solvers
ICTP Trieste, Trieste, Italy, July 2023
Talk: E. Gull, Tensor Trains: Replacing Monte Carlo with Tensor Decompositions
SIAM Conference on Computational Science and Engineering (CSE23 Amsterdam), February 2023
Talk: T. Blommel, D. J. Gardner, E. Gull, and C. S. Woodward, Adaptive Time Integrators and Their Use in NonEquilibrium Quantum Simulations
Chao Yang organized a twopart session on Modeling and Simulation of NonEquilibrium Quantum Dynamics, including talks by

M. Bernardi & I. Maliyov, NonEquilibrium Dynamics of Interacting Electrons, Phonons and Excitons from First Principles

C. Yang, J. Yin, & Y. Zhu, Numerical Methods for Simulating NonEquilibrium Quantum ManyBody Dynamics

L. Mejía, Stochastic RealTime Green's Function Theory for Neutral Excitations in Molecules and Nanostructures
2022
University of Freiburg, August 2022
Talk: A. Erpenbeck, Transport in correlated systems with quantum Monte Carlo: from molecular junctions to quantum materials
New Trends in Nonequilibrium ManyBody Systems (Dresden), August 2022
Invited talk: E. Gull, The RealTime Extension Problem
Frontiers of Quantum and Mesoscopic Thermodynamics (Prague), August 2022
Invited talk: A. Erpenbeck, Steady state formulation of inchworm Quantum Monte Carlo
Simons Collaboration on the Many Electron Problem lecture series (online), July 2022
Talk: A. Erpenbeck, Inchworm Quantum Monte Carlo: Algorithm, SteadyState Formulation, and Applications within DMFT
University of Erlangen–Nuremberg & Université Grenoble Alpes, CEA, July 2022
Talk: A. Erpenbeck, Inchworm Quantum Monte Carlo: a numerically exact impurity solver for nonequilibrium DMFT
2021
Applied Mathematics Seminar, Department of Mathematics, UC Berkeley, October 2021
Seminar talk: E. Gull, Nevanlinna Analytical Continuation