Interplay of charge and spin coherence in Landau-Zener-Stückelberg-Majorana interferometry

Ribeiro, Hugo; Petta, Jason R.; Burkard, Guido

Interplay of charge and spin coherence in Landau-Zener-Stückelberg-Majorana interferometry

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Datum

2013

Autor:innen

Ribeiro, Hugo

Petta, Jason R.

Burkard, Guido

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review B. 2013, 87(23). ISSN 1098-0121. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.87.235318

Zusammenfassung

We study Landau-Zener dynamics in a double quantum dot filled with two electrons, where the spin states can become correlated with charge states and the level velocity can be tuned in a time-dependent fashion. We show that a correct interpretation of experimental data is only possible when finite-time effects are taken into account. In addition, our formalism allows the study of partial adiabatic dynamics in the presence of phonon-mediated hyperfine relaxation and charge-noise-induced dephasing. Our findings demonstrate that charge noise severely impacts the visibility of Landau-Zener-Stückelberg-Majorana interference fringes. This indicates that charge coherence must be treated on an equal footing with spin coherence.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

RIBEIRO, Hugo, Jason R. PETTA, Guido BURKARD, 2013. Interplay of charge and spin coherence in Landau-Zener-Stückelberg-Majorana interferometry. In: Physical Review B. 2013, 87(23). ISSN 1098-0121. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.87.235318

BibTex

@article{Ribeiro2013Inter-24803,
  year={2013},
  doi={10.1103/PhysRevB.87.235318},
  title={Interplay of charge and spin coherence in Landau-Zener-Stückelberg-Majorana interferometry},
  number={23},
  volume={87},
  issn={1098-0121},
  journal={Physical Review B},
  author={Ribeiro, Hugo and Petta, Jason R. and Burkard, Guido}
}

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