3 papers
quant-ph2025
Helios: A 98-qubit trapped-ion quantum computer
Anthony Ransford, M. S. Allman, Jake Arkinstall +183
We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features Ba hyperfine…
math.OC2021
Accelerating Derivative-Free Optimization with Dimension Reduction and Hyperparameter Learning
Jordan R. Hall, Varis Carey
We consider convex, black-box objective functions with additive or multiplicative noise with a high-dimensional parameter space and a data space of lower dimension, where gradients…
physics.plasm-ph2017
Moment Preserving Constrained Resampling with Applications to Particle-in-Cell Methods
Danial Faghihi, Varis Carey, Craig Michoski +4
In simulations of partial differential equations using particle-in-cell (PIC) methods, it is often advantageous to resample the particle distribution function to increase simulatio…