Publikation:

Rashba spin-orbit interaction and shot noise for spin-polarized and entangled electrons

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2002

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Egues, J. Carlos
Loss, Daniel

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-91351
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https://doi.org/10.1103/PhysRevLett.89.176401
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http://arxiv.org/abs/cond-mat/0204639

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Zusammenfassung

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 determines the Fano factor which provides a direct way to measure the Rashba coupling constant via noise.

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ISO 690EGUES, J. Carlos, Guido BURKARD, Daniel LOSS, 2002. Rashba spin-orbit interaction and shot noise for spin-polarized and entangled electrons
BibTex
@unpublished{Egues2002Rashb-9355,
  year={2002},
  doi={10.1103/PhysRevLett.89.176401},
  title={Rashba spin-orbit interaction and shot noise for spin-polarized and entangled electrons},
  author={Egues, J. Carlos and Burkard, Guido and Loss, Daniel},
  note={Also publ. in: Physical Review Letters ; 89 (2002), 17. - 176401}
}
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Also publ. in: Physical Review Letters ; 89 (2002), 17. - 176401
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