Golovach, Vitaly N. and Borhani, Massoud and Loss, Daniel. (2006) Electric-dipole-induced spin resonance in quantum dots. Physical Review B, Vol. 74, H. 16 , 165319, 10 S..
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Official URL: http://edoc.unibas.ch/dok/A5254635
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Abstract
An alternating electric field, applied to a quantum dot, couples to the electron spin via the spin-orbit interaction. We analyze different types of spin-orbit coupling known in the literature and find two efficient mechanisms of spin control in quantum dots. The linear in momentum Dresselhaus and Rashba spin-orbit couplings give rise to a fully transverse effective magnetic field in the presence of a Zeeman splitting at lowest order in the spin-orbit interaction. The cubic in momentum Dresselhaus terms are efficient in a quantum dot with anharmonic confining potential and give rise to a spin-electric coupling proportional to the orbital magnetic field. We derive an effective spin Hamiltonian, which can be used to implement spin manipulation on a time scale of 10 ns with the current experimental setups.
Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss) |
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UniBasel Contributors: | Loss, Daniel |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | American Institute of Physics |
ISSN: | 0163-1829 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
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Identification Number: | |
Last Modified: | 22 Mar 2012 14:25 |
Deposited On: | 22 Mar 2012 13:48 |
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