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Tomography of quantum dots in a non-Hermitian photonic chip

 
: White, S.J.U.; Wang, K.; Tran, T.T.; Kianinia, M.; Titchener, J.; Gräfe, M.; Fischbach, S.; Rodt, S.; Song, J.-D.; Reitzenstein, S.; Aharonovich, I.; Sukhorukov, A.A.; Szameit, A.; Solntsev, A.S.

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Institute of Electrical and Electronics Engineers -IEEE-:
Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 : 23-27 June 2019, Munich, Germany
Piscataway, NJ: IEEE, 2019
ISBN: 978-1-7281-0469-0
ISBN: 978-1-7281-0470-6
pp.1662
Conference on Lasers and Electro-Optics Europe (CLEO Europe) <2019, Munich>
European Quantum Electronics Conference (EQEC) <2019, Munich>
English
Conference Paper
Fraunhofer IOF ()

Abstract
Quantum optical information systems offer the potential for secure communication and fast quantum computation. To fully characterise a quantum optical system one has to use quantum tomography [1]. Integration of quantum optics onto photonic chips provides advantages such as miniaturisation and stability, and also significantly improves quantum tomography using both re-configurable [2], and more recently, simpler static designs [3,4]. These on-chip designs have, so far, only used probabilistic single photon sources. Here we are working towards quantum tomography using a true deterministic source - a quantum dot. The scheme of the proposed experiment is shown in Fig. 1A. So far we have fabricated and characterised the performance of an InGaAs quantum dot monolithically integrated into a microlens [5], and completed the design, fabrication and classical characterisation of a photonic chip for quantum tomography.

: http://publica.fraunhofer.de/documents/N-630150.html