Towards hybrid quantum information in weak-coupling solid-state cavity QED systems

ORAL

Abstract

Quantum dots in oxide-apertured micropillar cavities are robust high-Q structures to implement solid-state cavity quantum electrodynamics (QED) and quantum information schemes involving single photons and the spin of a single confined electron. The electron spin interacts with the optical field through the trion state (two electrons-one hole). We discuss spin-selective photon reflection in the weak coupling cavity-QED regime and hybrid photon-electron spin schemes for implementing quantum gates. We discuss the practical implementation of the proposed schemes. In particular we show experimentally that the oxide-apertured micropillar cavities exhibit high-quality Hermite-Gaussian modes and that such modes can be permanently tuned, up to 150GHz, by introducing strain via optically induced surface deformations.

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Authors

  • Jan Gudat

    University of Leiden

  • Dapeng Ding

    University of Leiden

  • Cristian Bonato

    University of Leiden

  • Sumant Oemrawsingh

    University of Leiden

  • Susanna Thon

    University of California Santa Barbara Physics Department, University of California, Santa Barbara

  • Hyochul Kim

    University of California Santa Barbara Physics Department, University of California, Santa Barbara

  • Martin van Exter

    University of Leiden

  • Dirk Bouwmeester

    UCSB, Physics Department, University of California Santa Barbara Physics Department and Leiden University Huygens Laboratory, University of California, Santa Barbara