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Fidelity of optically induced single-spin rotations in semiconductor quantum dots in the presence of nuclear spins

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2014

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https://doi.org/10.1002/pssb.201350412
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Physica status solidi / B. 2014, 251(9), pp. 1938-1944. ISSN 0370-1972. eISSN 1521-3951. Available under: doi: 10.1002/pssb.201350412

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We examine the influence of nuclear spins on the performance of optically induced rotations of single electron spins in semiconductor quantum dots. We consider Raman-type optical transitions between electron spin states and take into account the additional effect of the Overhauser field. We calculate average fidelities of rotations around characteristic axes in the presence of nuclear spins analytically with perturbation theory up to second order in the Overhauser field. Moreover, we calculate the fidelity using numerical averaging over the nuclear field distribution, including arbitrary orders of the hyperfine interaction.

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530 Physik

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ISO 690HILDMANN, Julia, Guido BURKARD, 2014. Fidelity of optically induced single-spin rotations in semiconductor quantum dots in the presence of nuclear spins. In: Physica status solidi / B. 2014, 251(9), pp. 1938-1944. ISSN 0370-1972. eISSN 1521-3951. Available under: doi: 10.1002/pssb.201350412
BibTex
@article{Hildmann2014Fidel-32335,
  year={2014},
  doi={10.1002/pssb.201350412},
  title={Fidelity of optically induced single-spin rotations in semiconductor quantum dots in the presence of nuclear spins},
  number={9},
  volume={251},
  issn={0370-1972},
  journal={Physica status solidi / B},
  pages={1938--1944},
  author={Hildmann, Julia and Burkard, Guido}
}
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