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

Egues, J. Carlos; Burkard, Guido; Loss, Daniel

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

Dateien

0204639v2.pdfGröße: 299.32 KBDownloads: 155

Datum

2002

Autor:innen

Egues, J. Carlos

Burkard, Guido

Loss, Daniel

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Preprint

Publikationsstatus

Published

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.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

EGUES, 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@unpublished{Egues2002Rashb-9355,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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Kommentar zur Publikation

Also publ. in: Physical Review Letters ; 89 (2002), 17. - 176401

Universitätsbibliographie

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