Material platforms for defect qubits and single-photon emitters

G Zhang, Y Cheng, JP Chou, A Gali - Applied Physics Reviews, 2020 - pubs.aip.org
Quantum technology has grown out of quantum information theory and now provides a
valuable tool that researchers from numerous fields can add to their toolbox of research …

Ab initio theory of the nitrogen-vacancy center in diamond

Á Gali - Nanophotonics, 2019 - degruyter.com
The nitrogen-vacancy (NV) center in diamond is a solid-state defect qubit with favorable
coherence time up to room temperature, which could be harnessed in several quantum …

Quantum information and algorithms for correlated quantum matter

K Head-Marsden, J Flick, CJ Ciccarino… - Chemical …, 2020 - ACS Publications
Discoveries in quantum materials, which are characterized by the strongly quantum-
mechanical nature of electrons and atoms, have revealed exotic properties that arise from …

Quantum simulations of materials on near-term quantum computers

H Ma, M Govoni, G Galli - npj Computational Materials, 2020 - nature.com
Quantum computers hold promise to enable efficient simulations of the properties of
molecules and materials; however, at present they only permit ab initio calculations of a few …

Green's function formulation of quantum defect embedding theory

N Sheng, C Vorwerk, M Govoni… - Journal of Chemical …, 2022 - ACS Publications
We present a Green's function formulation of the quantum defect embedding theory (QDET)
where a double counting scheme is rigorously derived within the G 0 W 0 approximation. We …

Recent advances in the ab initio theory of solid-state defect qubits

Á Gali - Nanophotonics, 2023 - degruyter.com
Solid-state defects acting as single photon sources and quantum bits are leading
contenders in quantum technologies. Despite great efforts, not all the properties and …

Quantum defects by design

LC Bassett, A Alkauskas, AL Exarhos, KMC Fu - Nanophotonics, 2019 - degruyter.com
Optically active point defects in wide-bandgap crystals are leading building blocks for
quantum information technologies including quantum processors, repeaters, simulators, and …

Pressure and temperature dependence of the zero-field splitting in the ground state of NV centers in diamond: A first-principles study

V Ivády, T Simon, JR Maze, IA Abrikosov, A Gali - Physical Review B, 2014 - APS
Nitrogen-vacancy centers in diamond (NV) attract great attention because they serve as a
tool in many important applications. The NV center has a polarizable spin S= 1 ground state …

Theory of the optical spin-polarization loop of the nitrogen-vacancy center in diamond

G Thiering, A Gali - Physical Review B, 2018 - APS
The nitrogen-vacancy (NV) center in diamond is of high importance in quantum information
processing applications. The operation of the NV center relies on the efficient optical …

First principles calculation of spin-related quantities for point defect qubit research

V Ivády, IA Abrikosov, A Gali - npj Computational Materials, 2018 - nature.com
Point defect research in semiconductors has gained remarkable new momentum due to the
identification of special point defects that can implement qubits and single photon emitters …