Engineering topological states in atom-based semiconductor quantum dots

M Kiczynski, SK Gorman, H Geng, MB Donnelly… - Nature, 2022 - nature.com
The realization of controllable fermionic quantum systems via quantum simulation is
instrumental for exploring many of the most intriguing effects in condensed-matter physics …

Experimental realization of an extended Fermi-Hubbard model using a 2D lattice of dopant-based quantum dots

X Wang, E Khatami, F Fei, J Wyrick… - Nature …, 2022 - nature.com
The Hubbard model is an essential tool for understanding many-body physics in condensed
matter systems. Artificial lattices of dopants in silicon are a promising method for the analog …

Quantum federated learning through blind quantum computing

W Li, S Lu, DL Deng - Science China Physics, Mechanics & Astronomy, 2021 - Springer
Private distributed learning studies the problem of how multiple distributed entities
collaboratively train a shared deep network with their private data unrevealed. With the …

Atom‐by‐atom fabrication of single and few dopant quantum devices

J Wyrick, X Wang, RV Kashid… - Advanced Functional …, 2019 - Wiley Online Library
Atomically precise fabrication has an important role to play in developing atom‐based
electronic devices for use in quantum information processing, quantum materials research …

Impact of incorporation kinetics on device fabrication with atomic precision

JA Ivie, Q Campbell, JC Koepke, MI Brickson… - Physical Review …, 2021 - APS
Scanning tunneling microscope lithography can be used to create nanoelectronic devices in
which dopant atoms are precisely positioned in a Si lattice within approximately 1 nm of a …

Topological phases of a dimerized Fermi–Hubbard model for semiconductor nano-lattices

NH Le, AJ Fisher, NJ Curson, E Ginossar - npj Quantum Information, 2020 - nature.com
Motivated by recent advances in fabricating artificial lattices in semiconductors and their
promise for quantum simulation of topological materials, we study the one-dimensional …

Atomic-scale control of tunneling in donor-based devices

X Wang, J Wyrick, RV Kashid, P Namboodiri… - Communications …, 2020 - nature.com
Atomically precise donor-based quantum devices are a promising candidate for solid-state
quantum computing and analog quantum simulations. However, critical challenges in …

Extended Hubbard model describing small multidot arrays in bilayer graphene

A Knothe, G Burkard - Physical Review B, 2024 - APS
We set up and parametrize a Hubbard model for interacting quantum dots in bilayer
graphene and study double dots as the smallest multidot system. We demonstrate the …

Quantum simulator of extended bipartite Hubbard model with broken sublattice symmetry: Magnetism, correlations, and phase transitions

Y Saleem, A Dusko, M Cygorek, M Korkusinski… - Physical Review B, 2022 - APS
We describe here a quantum simulator of extended bipartite Hubbard model with broken
sublattice symmetry. The simulator consists of a structured lateral gate confining two …

Valley filtering in spatial maps of coupling between silicon donors and quantum dots

J Salfi, B Voisin, A Tankasala, J Bocquel, M Usman… - Physical Review X, 2018 - APS
Exchange coupling is a key ingredient for spin-based quantum technologies since it can be
used to entangle spin qubits and create logical spin qubits. However, the influence of the …