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Research project

Quantum Waveguides for Indistinguishable Single Photon Sources (QWISPS)

Project overview

Covesion Ltd and The University of Southampton plan a collaborative feasibility study to investigate the use of periodicallypoled lithium niobate crystals in single-photon sources for applications exploiting quantum entanglement. Our crystals enable the energy of a single photon to be split and conserved as two lower-energy photons at different colours; the laws of physics state that if one of these photons is created then the other must also exist. In this project, we seek to reduce the manufacturing tolerances required to generate indistinguisable photons between parallel sources and our objective is to prove our new approach across multiple devices. This is an important step in enabling scalable quantum applications where many indistinguishable photons are needed in parallel, such as quantum computing.

Staff

Lead researchers

Professor Peter G.R. Smith

Professor in Electronics & Comp Science
Connect with Peter G.R.

Email: Peter.Smith@soton.ac.uk

Other researchers

Professor Corin Gawith

Professor of Optical Engineering
Connect with Corin

Email: corin.gawith@soton.ac.uk

Collaborating research institutes, centres and groups

Research outputs

Alan Ciaran Gray, Sam A Berry, Lewis Glynn Carpenter, James Gates, Corin Gawith & Peter G.R. Smith, 2020, Optics Express, 28(23), 34279-34289
DOI:
Type: article
Lewis Glynn Carpenter, Sam A. Berry, Alan Ciaran Gray, James Gates, Peter G.R. Smith & Corin Gawith, 2020, Optics Express, 28(15), 21382-21390
DOI:
Type: article
Alan, Ciaran Gray, Jonathan Woods, Hermann Kahle, Lewis Glynn Carpenter, Sam Berry, Anne Tropper, Mircea Guina, Vasileios Apostolopoulos, Peter G.R. Smith & Corin Gawith, 2020, Applied Optics, 59(16), 4921-4926
DOI:
Type: article
Alan Ciaran Gray, Lewis Glynn Carpenter, Sam Berry, James Gates, Peter G R Smith & Corin Gawith, 2020, IEEE Photonics Technology Letters, 32(1), 63-66
DOI:
Type: article
Alan Ciaran Gray, Lewis Glynn Carpenter, Sam A. Berry, James Gates, Christopher Holmes, Peter G.R. Smith & Corin Gawith, 2019
DOI:
Type: conference
Lewis Carpenter, Sam Berry & Corin Gawith, 2016
DOI:
Type: conference
Corin Gawith, James Gates, Paolo Mennea, Lewis Carpenter, Sam Berry, Christopher Holmes, Stephen Lynch, Matthew Posner, Rex Bannerman, Miranda Turvey, Peter Cooper & Peter Smith, 2016
Type: conference