Quantum many-body theory for electron spin decoherence in nanoscale nuclear spin baths

W Yang, WL Ma, RB Liu - Reports on Progress in Physics, 2016 - iopscience.iop.org
Decoherence of electron spins in nanoscale systems is important to quantum technologies
such as quantum information processing and magnetometry. It is also an ideal model …

Millisecond coherence time in a tunable molecular electronic spin qubit

JM Zadrozny, J Niklas, OG Poluektov… - ACS central …, 2015 - ACS Publications
Quantum information processing (QIP) could revolutionize areas ranging from chemical
modeling to cryptography. One key figure of merit for the smallest unit for QIP, the qubit, is …

Atomic clock transitions in silicon-based spin qubits

G Wolfowicz, AM Tyryshkin, RE George… - Nature …, 2013 - nature.com
A major challenge in using spins in the solid state for quantum technologies is protecting
them from sources of decoherence. This is particularly important in nanodevices where the …

Quantitative structure-based prediction of electron spin decoherence in organic radicals

ER Canarie, SM Jahn, S Stoll - The journal of physical chemistry …, 2020 - ACS Publications
The decoherence, or dephasing, of electron spins in paramagnetic molecules limits
sensitivity and resolution in electron paramagnetic resonance spectroscopy, and it …

Hyperfine coupling of point defects in semiconductors by hybrid density functional calculations: The role of core spin polarization

K Szász, T Hornos, M Marsman, A Gali - Physical Review B—Condensed …, 2013 - APS
We implemented the calculation of hyperfine tensors into such plane wave supercell code
working with the projector augmentation wave method that incorporates hybrid density …

Multiple quantum coherences from hyperfine transitions in a vanadium (IV) complex

JM Zadrozny, J Niklas, OG Poluektov… - Journal of the …, 2014 - ACS Publications
We report a vanadium complex in a nuclear-spin free ligand field that displays two key
properties for an ideal candidate qubit system: long coherence times that persist at high …

Electrically controlled nuclear polarization of individual atoms

K Yang, P Willke, Y Bae, A Ferrón, JL Lado… - Nature …, 2018 - nature.com
Nuclear spins serve as sensitive probes in chemistry and materials science and are
promising candidates for quantum information processing,,–. NMR, the resonant control of …

Quintet formation, exchange fluctuations, and the role of stochastic resonance in singlet fission

MI Collins, F Campaioli, MJY Tayebjee… - Communications …, 2023 - nature.com
Singlet fission describes the spin-conserving production of two triplet excitons from one
singlet exciton. The existence of a spin-2 (quintet) triplet-pair state as a product of singlet …

Dynamical-decoupling-based quantum sensing: Floquet spectroscopy

JE Lang, RB Liu, TS Monteiro - Physical Review X, 2015 - APS
Sensing the internal dynamics of individual nuclear spins or clusters of nuclear spins has
recently become possible by observing the coherence decay of a nearby electronic spin: the …

First-principles theory of extending the spin qubit coherence time in hexagonal boron nitride

J Lee, H Park, H Seo - npj 2D Materials and Applications, 2022 - nature.com
Negatively charged boron vacancies (VB−) in hexagonal boron nitride (h-BN) are a rapidly
develo** qubit platform in two-dimensional materials for solid-state quantum applications …