Publikation:

Probing entanglement via Rashba-induced shot noise oscillations

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0207392v1.pdf
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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-91332
DOI (zitierfähiger Link)
https://doi.org/10.1023/A:1025365923742
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http://arxiv.org/abs/cond-mat/0207392

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Published

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Journal of Superconductivity. 2002, 16(4), pp. 711-718. Available under: doi: 10.1023/A:1025365923742

Zusammenfassung

We have recently calculated shot noise for entangled and spin-polarized electrons in novel beamsplitter geometries with a local Rashba s-o interaction in the incoming leads. This interaction allows for a gate-controlled rotation of the incoming electron spins. Here we present an alternate simpler route to the shot noise calculation in the above work and focus on only electron pairs. Shot noise for these shows continuous bunching and antibunching behaviors. In addition, entangled and unentangled triplets yield distinctive shot noise oscillations. Besides allowing for a direct way to identify triplet and singlet states, these oscillations can be used to extract s-o coupling constants through noise measurements. Incoming leads with spin-orbit interband mixing give rise an additional modulation of the current noise. This extra rotation allows the design of a spin transistor with enhanced spin control.

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Fachgebiet (DDC)
530 Physik

Schlagwörter

Shot noise, Rashba spin orbit, Spin-entangled electrons

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ISO 690EGUES, J. Carlos, Guido BURKARD, Daniel LOSS, 2002. Probing entanglement via Rashba-induced shot noise oscillations. In: Journal of Superconductivity. 2002, 16(4), pp. 711-718. Available under: doi: 10.1023/A:1025365923742
BibTex
@article{Egues2002Probi-4958,
  year={2002},
  doi={10.1023/A:1025365923742},
  title={Probing entanglement via Rashba-induced shot noise oscillations},
  number={4},
  volume={16},
  journal={Journal of Superconductivity},
  pages={711--718},
  author={Egues, J. Carlos and Burkard, Guido and Loss, Daniel}
}
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