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Garnett W. Bryant (Fed)

Garnett Bryant is a theoretical condensed matter physicist at the National Institute for Standards and Technology (NIST) and group leader of the Atom Scale Devices Group. He is also a fellow of the NIST/University of Maryland Joint Quantum Institute. He performs fundamental research on atomic-scale solid-state quantum devices, such as dopant-based devices in silicon, as well as nanoscale quantum and photonic devices including semiconductor quantum dots and wires and metal nanoparticles. He has done extensive work to develop and exploit atomistic modeling of these structures. This provides the basis for studies of dopant-based Si quantum devices, spin physics in quantum dots and wires, and the many-body physics in atomic-scale systems used for quantum simulators. Other interests include quantum plasmonics and nanooptics.

Projects

Atomistic Modeling of Atom-scale and Nanoscale Quantum Systems

From Q Lab to Quantum Simulators

Publications

Single-electron states of phosphorus-atom arrays in silicon

Author(s)
Maicol Ochoa, Keyi Liu, Michał Zieliński, Garnett W. Bryant
We characterize the single-electron energies and the wavefunction structure of arrays with two, three, and four phosphorus atoms in silicon by implementing

Nagaoka Ferromagnetism in 3 × 3 Arrays and Beyond

Author(s)
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

Single-particle approach to many-body relaxation dynamics

Author(s)
Garnett W. Bryant, Marta Pelc, David Dams, Abhishek Ghosh, Miriam Kosik, Marvin Muller, Carsten Rockstuhl, Andres Ayuela, Karolina Slowik
This study addresses the challenge of modeling relaxation dynamics in quantum many-body systems, specifically focusing on electrons in graphene nanoflakes
Created October 9, 2019, Updated December 8, 2022