3 papers
quant-ph2025
Atomistic tight-binding Hartree-Fock calculations of multielectron configurations in P-doped silicon devices: wavefunction reshaping
Maicol A. Ochoa, Keyi Liu, Piotr Różański +2
Donor-based quantum devices in silicon are attractive platforms for universal quantum computing and analog quantum simulations. The nearly-atomic precision in dopant placement prom…
cond-mat.mes-hall2024
Nagaoka Ferromagnetism in Arrays and Beyond
Yan Li, Keyi Liu, Garnett W. Bryant
Nagaoka ferromagnetism (NF) is a long-predicted example of itinerant ferromagnetism (IF) in the Hubbard model that has been studied theoretically for many years. The condition for…
quant-ph2024
Single-electron states of phosphorus-atom arrays in silicon
Maicol A. Ochoa, Keyi Liu, Michał Zieliński +1
We characterize the single-electron energies and the wavefunction structure of arrays with two, three, and four phosphorus atoms in silicon by implementing atomistic tight-binding…