Explore the words cloud of the SQuaPh project. It provides you a very rough idea of what is the project "SQuaPh" about.
The following table provides information about the project.
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
|Coordinator Country||France [FR]|
|Total cost||173˙076 €|
|EC max contribution||173˙076 € (100%)|
1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
|Duration (year-month-day)||from 2016-11-01 to 2018-10-31|
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|1||CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS||FR (PARIS)||coordinator||173˙076.00|
The development of quantum networks relies on true single-photon sources and deterministic quantum logic gates. Photons are the most promising flying qubits, capable to propagate long distances without decoherence. However, until now, quantum communications protocols and optical quantum computation have been implemented using defective single-photon sources and probabilistic quantum gates. For a long time, the best single-photon sources have been heralded non-linear crystals where photon-pairs are generated. Such sources can present high coherence properties although they are intrinsically limited to a very low photon flux.
This project builds up on major steps obtained in the host team, Laboratoire de Photonique et de Nanostructures, in terms of true single-photon generation and control. By deterministically inserting a quantum dot (QD) in a semiconductor microcavity pillar, the host team fabricated photon sources with quantum properties as good as the currently used sources, but with an unprecedented brightness of 2 orders of magnitude larger. The cavity not only enhances the interaction of the incident photons with the QD state but also the subsequent photon extraction of the device. The Purcell effect diminishes the decoherence processes, constituting an ultrabright source of highly indistinguishable, single-photons.
Based on the unique technological, experimental and conceptual knowledge developed by the host team, and on the background of the applicant, our successive objectives is to realize scalable quantum entanglement: to entangle two-photon states with our ultrabright QD-cavity systems at high rates, to use them to perform high fidelity teleportation with long coherence times between 2 different sources, and finally to controllably swap the entanglement between 2 entangled photon-pairs.
|year||authors and title||journal||last update|
Lorenzo De Santis, Carlos AntÃ³n, Bogdan Reznychenko, Niccolo Somaschi, Guillaume Coppola, Jean Senellart, Carmen GÃ³mez, Aristide LemaÃ®tre, Isabelle Sagnes, Andrew G. White, LoÃ¯c Lanco, Alexia AuffÃ¨ves, Pascale Senellart
A solid-state single-photon filter
published pages: 663-667, ISSN: 1748-3387, DOI: 10.1038/NNANO.2017.85
|Nature Nanotechnology 12/7||2019-05-25|
Carlos AntÃ³n, Paul Hilaire, Christian A. Kessler, Justin Demory, Carmen GÃ³mez, Aristide LemaÃ®tre, Isabelle Sagnes, Norberto Daniel Lanzillotti-Kimura, Olivier Krebs, Niccolo Somaschi, Pascale Senellart, LoÃ¯c Lanco
Tomography of the optical polarization rotation induced by a single quantum dot in a cavity
published pages: 1326, ISSN: 2334-2536, DOI: 10.1364/optica.4.001326
P. Hilaire, C. AntÃ³n, C. Kessler, A. LemaÃ®tre, I. Sagnes, N. Somaschi, P. Senellart, L. Lanco
Accurate measurement of a 96% input coupling into a cavity using polarization tomography
published pages: 201101, ISSN: 0003-6951, DOI: 10.1063/1.5026799
|Applied Physics Letters 112/20||2019-05-25|
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