A Highly Efficient Single Photon-Single Quantum Dot Interface

Part of the Nano-Optics and Nanophotonics book series (NON)


Semiconductor quantum dots are a promising system to build a solid state quantum network. A critical step in this area is to build an efficient interface between a stationary quantum bit and a flying one. In this chapter, we show how cavity quantum electrodynamics allows us to efficiently interface a single quantum dot with a propagating electromagnetic field. Beyond the well known Purcell factor, we discuss the various parameters that need to be optimized to build such an interface. We then review our recent progresses in terms of fabrication of bright sources of indistinguishable single photons, where a record brightness of 79 % is obtained as well as a high degree of indistinguishability of the emitted photons. Symmetrically, optical nonlinearities at the very few photon level are demonstrated, by sending few photon pulses at a quantum dot-cavity device operating in the strong coupling regime. Perspectives and future challenges are briefly discussed.


Single Photon Cavity Mode CNOT Gate Single Photon Source Target Qubit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors acknowledge their coworkers who have made all these results possible: Aristide Lemaitre, Isabelle Sagnes, Paul Voisin, Olivier Krebs, Adrien Dousse, Olivier Gazzano, Jan Suffczynski, Steffen Michaelis de Vasconcellos, Anna Nowak, Simone Luca Portalupi, Valérian Giesz, Niccolo Somaschi, Chirstophe Arnold, Vivien Loo, Justin Demory, Marcelo de Almeida, Andrew White and Alexia Auffeves. This work was partially supported by the French ANR DELIGHT, ANR MIND, ANR CAFE, ANR QDOM, the ERC starting grant 277885 QD-CQED, the CHISTERA project SSQN, the French Labex NANOSACLAY, and the RENATECH network.


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.CNRS-LPN Laboratoire de Photonique Et de NanostructuresRoute de NozayMarcoussisFrance
  2. 2.Université Paris DiderotParis Cedex 13France
  3. 3.Physics DepartmentEcole Polytechnique-RD128Palaiseau CedexFrance

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