Resonant manipulation of carbon nanotube valley-spin qubits by an electric field is investigated theoretically. We develop a new analysis of electrically driven spin resonance exploiting fixed physical characteristics of the nanotube: a bend and inhomogeneous disorder. The spectrum is simulated for an electron valley-spin qubit coupled to a hole valley-spin qubit and an impurity electron spin, and features that coincide with a recent measurement are identified. We show that the same mechanism allows resonant control of the full four-dimensional spin-valley space.
@article{arxiv.1408.0951,
title = {Electrically driven spin resonance in a bent disordered carbon nanotube},
author = {Ying Li and Simon C. Benjamin and G. Andrew D. Briggs and Edward A. Laird},
journal= {arXiv preprint arXiv:1408.0951},
year = {2015}
}