Control of electron spin and orbital resonances in quantum dots through spin-orbit interactions

Stano, Peter and Fabian, Jaroslav (2008) Control of electron spin and orbital resonances in quantum dots through spin-orbit interactions. PHYSICAL REVIEW B, 77 (4): 045310. ISSN 2469-9950, 2469-9969

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Abstract

The influence of a resonant oscillating electromagnetic field on a single electron in coupled lateral quantum dots in the presence of phonon-induced relaxation and decoherence is investigated. Using symmetry arguments, it is shown that the spin and orbital resonances can be efficiently controlled by spin-orbit interactions. The control is possible due to the strong sensitivity of the Rabi frequency to the dot configuration (the orientation of the dot and the applied static magnetic field); the sensitivity is a result of the anisotropy of the spin-orbit interactions. The so-called easy passage configuration is shown to be particularly suitable for a magnetic manipulation of spin qubits, ensuring long spin relaxation times and protecting the spin qubits from electric field disturbances accompanying on-chip manipulations.

Item Type: Article
Uncontrolled Keywords: SPINTRONICS; COMPUTATION;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian
Depositing User: Dr. Gernot Deinzer
Date Deposited: 23 Nov 2020 09:37
Last Modified: 23 Nov 2020 09:37
URI: https://pred.uni-regensburg.de/id/eprint/31760

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