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arXiv · 1408.0951

Electrically driven spin resonance in a bent disordered carbon nanotube

Ying Li·Simon C. Benjamin·G. Andrew D. Briggs·Edward A. Laird
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Abstract

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.

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Ying Li, Simon C. Benjamin, G. Andrew D. Briggs, Edward A. Laird. 2014-08-05. Electrically driven spin resonance in a bent disordered carbon nanotube. https://doi.org/10.1103/physrevb.90.195440

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