Universal quantum computing using electro-nuclear wavefunctions of rare-earth ions
Quantum Physics
2021-01-27 v1
Abstract
We propose a scheme for universal quantum computing based on Kramers rare-earth ions. Their nuclear spins in the presence of a Zeeman-split electronic crystal field ground state act as 'passive' qubits which store quantum information. The qubits can be activated optically by fast coherent transitions to excited crystal field states with a magnetic moment. The dipole interaction between these states is used to implement CNOT gates. We compare our proposal with a similar one based on phosphorus donor atoms in silicon and discuss the significantly improved CNOT gate time as compared to rare-earth implementations via the slower dipole blockade.
Cite
@article{arxiv.2009.14126,
title = {Universal quantum computing using electro-nuclear wavefunctions of rare-earth ions},
author = {Manuel Grimm and Adrian Beckert and Gabriel Aeppli and Markus Müller},
journal= {arXiv preprint arXiv:2009.14126},
year = {2021}
}
Comments
19 pages, 10 figures