Optical detection of single-electron spin decoherence in a quantum dot

Gywat, O. and Engel, H. A. and Loss, D. and Epstein, R. J. and Mendoza, F. M. and Awschalom, D. D.. (2004) Optical detection of single-electron spin decoherence in a quantum dot. Physical Review B, Vol. 69, H. 20 , 205303, 5 S..

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Official URL: http://edoc.unibas.ch/dok/A5254680

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We propose a method based on optically detected magnetic resonance (ODMR) to measure the decoherence time T-2 of a single electron spin in a semiconductor quantum dot. The electron spin resonance (ESR) of a single excess electron on a quantum dot is probed by circularly polarized laser excitation. Due to Pauli blocking, optical excitation is only possible for one of the electron-spin states. The photoluminescence is modulated due to the ESR which enables the measurement of electron-spin decoherence. We study different possible schemes for such an ODMR setup.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:25
Deposited On:22 Mar 2012 13:48

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