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Trapped Ion Quantum Computing

Conditional phase shift from a quantum dot in a pillar microcavity

arXiv
Authors: A. B. Young, R. Oulton, C. Y. Hu, A. C. T. Thijssen, C. Schneider, S. Reitzenstein, M. Kamp, S. Hoefling, L. Worschech, A. Forchel, J. G. Rarity

Year

2010

Paper ID

10605

Status

Preprint

Abstract Read

~2 min

Abstract Words

108

Citations

N/A

Abstract

Large conditional phase shifts from coupled atom-cavity systems are a key requirement for building a spin photon interface. This in turn would allow the realisation of hybrid quantum information schemes using spin and photonic qubits. Here we perform high resolution reflection spectroscopy of a quantum dot resonantly coupled to a pillar microcavity. We show both the change in reflectivity as the quantum dot is tuned through the cavity resonance, and measure the conditional phase shift induced by the quantum dot using an ultra stable interferometer. These techniques could be extended to the study of charged quantum dots, where it would be possible to realise a spin photon interface.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2010 reference point for readers tracking recent quantum research.
  • Large conditional phase shifts from coupled atom-cavity systems are a key requirement for building a spin photon interface.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1011.0384 [2] arXiv https://arxiv.org/abs/1011.0384 [3] Publisher https://arxiv.org/abs/1011.0384

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