Transport Spectroscopy of a Spin-Coherent Dot-Cavity System

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2015
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Rössler, Clemens
Oehri, David
Blatter, Gianni
Karalic, Matija
Pijnenburg, Jana
Hofmann, Andreas
Ihn, Thomas
Ensslin, Klaus
Reichl, Christian
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Physical Review Letters. American Physical Society (APS). 2015, 115(16), 166603. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.115.166603
Zusammenfassung

Quantum engineering requires controllable artificial systems with quantum coherence exceeding the device size and operation time. This can be achieved with geometrically confined low-dimensional electronic structures embedded within ultraclean materials, with prominent examples being artificial atoms (quantum dots) and quantum corrals (electronic cavities). Combining the two structures, we implement a mesoscopic coupled dot-cavity system in a high-mobility two-dimensional electron gas, and obtain an extended spin-singlet state in the regime of strong dot-cavity coupling. Engineering such extended quantum states presents a viable route for nonlocal spin coupling that is applicable for quantum information processing.

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ISO 690RÖSSLER, Clemens, David OEHRI, Oded ZILBERBERG, Gianni BLATTER, Matija KARALIC, Jana PIJNENBURG, Andreas HOFMANN, Thomas IHN, Klaus ENSSLIN, Christian REICHL, 2015. Transport Spectroscopy of a Spin-Coherent Dot-Cavity System. In: Physical Review Letters. American Physical Society (APS). 2015, 115(16), 166603. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.115.166603
BibTex
@article{Rossler2015-10-16Trans-55219,
  year={2015},
  doi={10.1103/PhysRevLett.115.166603},
  title={Transport Spectroscopy of a Spin-Coherent Dot-Cavity System},
  number={16},
  volume={115},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Rössler, Clemens and Oehri, David and Zilberberg, Oded and Blatter, Gianni and Karalic, Matija and Pijnenburg, Jana and Hofmann, Andreas and Ihn, Thomas and Ensslin, Klaus and Reichl, Christian},
  note={Article Number: 166603}
}
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