Photonic qubits, qutrits and ququads accurately prepared and delivered on demand

@article{NisbetJones2013PhotonicQQ,
  title={Photonic qubits, qutrits and ququads accurately prepared and delivered on demand},
  author={P. Nisbet-Jones and J. Dilley and A. Holleczek and O. Barter and A. Kuhn},
  journal={New Journal of Physics},
  year={2013},
  volume={15},
  pages={053007}
}
Reliable encoding of information in quantum systems is crucial to all approaches to quantum information processing or communication. This applies in particular to photons used in linear optics quantum computing, which is scalable provided a deterministic single-photon emission and preparation is available. Here, we show that narrowband photons deterministically emitted from an atom?cavity system fulfil these requirements. Within their 500?ns coherence time, we demonstrate a subdivision into d… Expand

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