Egues, J. C. and Burkard, G. and Loss, D.. (2002) Rashba spin-orbit interaction and shot noise for spin-polarized and entangled electrons. Physical review letters, Vol. 89, H. 17 , 176401, 4 S..
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Official URL: http://edoc.unibas.ch/dok/A5254711
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Abstract
We study shot noise for spin-polarized currents and entangled electron pairs in a four-probe (beam-splitter) geometry with a local Rashba spin-orbit (s-o) interaction in the incoming leads. Within the scattering formalism we find that shot noise exhibits Rashba-induced oscillations with continuous bunching and antibunching. We show that entangled states and triplet states can be identified via their Rashba phase in noise measurements. For two-channel leads, we find an additional spin rotation due to s-o induced interband coupling which enhances spin control. We show that the s-o interaction deter-mines the Fano factor, which provides a direct way to measure the Rashba coupling constant via noise.
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 Physical Society |
ISSN: | 0031-9007 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
Related URLs: | |
Identification Number: | |
Last Modified: | 22 Mar 2012 14:26 |
Deposited On: | 22 Mar 2012 13:53 |
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