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Cavity control over heavy-hole spin qubits in inversion-symmetric crystals

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2020

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Physical Review B. American Physical Society (APS). 2020, 102(20), 205412. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.102.205412

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The pseudospin of heavy holes (HHs) confined in a semiconductor quantum dot (QD) represents a promising candidate for a fast and robust qubit. While hole spin manipulation by a classical electric field utilizing the Dresselhaus spin-orbit interaction (SOI) has been demonstrated, our work explores cavity-based qubit manipulation and coupling schemes for inversion-symmetric crystals forming a planar HH QD. Choosing the exemplary material germanium (Ge), we derive an effective cavity-mediated ground state spin coupling that harnesses the cubic Rashba SOI. In addition, we propose an optimal set of parameters which allows for Rabi frequencies in the MHz range, thus entering the strong coupling regime of cavity quantum electrodynamics.

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ISO 690MUTTER, Philipp M., Guido BURKARD, 2020. Cavity control over heavy-hole spin qubits in inversion-symmetric crystals. In: Physical Review B. American Physical Society (APS). 2020, 102(20), 205412. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.102.205412
BibTex
@article{Mutter2020-08-21T12:07:12ZCavit-51916,
  year={2020},
  doi={10.1103/PhysRevB.102.205412},
  title={Cavity control over heavy-hole spin qubits in inversion-symmetric crystals},
  number={20},
  volume={102},
  issn={2469-9950},
  journal={Physical Review B},
  author={Mutter, Philipp M. and Burkard, Guido},
  note={Article Number: 205412}
}
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