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Single-Photon Non-Locality

Total Cost €


EC-Contrib. €






Project "SiPhoN" data sheet

The following table provides information about the project.


Organization address
postcode: 100 44

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Sweden [SE]
 Total cost 173˙857 €
 EC max contribution 173˙857 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2015
 Duration (year-month-day) from 2015-11-01   to  2017-12-02


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The principle of non-locality is one of the most impressive features of quantum mechanics. Usually, non-locality is related to two or more particles sharing a common characteristic. This quantum mechanical effect is well understood and several experimental demonstrations have been performed. However, non-locality of a single particle, in particular of a single-photon raises fundamental questions: Can a single-photon be simultaneously at different locations? In spite of numerous theoretical concepts, no clear experiment has yet been reported. In this project, I will experimentally prove the non-local nature of a single-photon. To this end, I will create on-demand single-photons from nanowire quantum dots and measure the single-photon non-locality in a new homodyne detection scheme. This combines several future key technologies ranging from novel quantum light sources to superconducting materials, making the proposed research of broad interest in the European research community. In addition, this project will enable Single Quantum B.V. (the only European company developing superconducting detectors and in competition with Russian and US companies) to perfect their detection systems and optimize them for the emerging market of quantum optics applications that is expected to turn into a large market in this century. A successful realization of the proposed research relies on four pillars: Resonance fluorescence (applicant: Dr. Joens), bright single-photon emitters (supervisor: Prof. Zwiller), efficient detectors (partner: Single Quantum B.V.), and the theoretical understanding of non-locality (host: KTH). Every single party contributes with its unique expertise to the big picture. This makes the proposed constellation of participating organisations essential for the success of the project. Together we will finally answer one of the fundamental questions in quantum mechanics: Single-photon non-locality.


year authors and title journal last update
List of publications.
2017 Ali W. Elshaari, Iman Esmaeil Zadeh, Andreas Fognini, Michael E. Reimer, Dan Dalacu, Philip J. Poole, Val Zwiller, Klaus D. Jöns
On-chip single photon filtering and multiplexing in hybrid quantum photonic circuits
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-017-00486-8
Nature Communications 8/1 2019-06-18
2017 Klaus D. Jöns, Katarina Stensson, Marcus Reindl, Marcin Swillo, Yongheng Huo, Val Zwiller, Armando Rastelli, Rinaldo Trotta, Gunnar Björk
Two-photon interference from two blinking quantum emitters
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.96.075430
Physical Review B 96/7 2019-06-18
2018 Lucas Schweickert, Klaus D. Jöns, Katharina D. Zeuner, Saimon Filipe Covre da Silva, Huiying Huang, Thomas Lettner, Marcus Reindl, Julien Zichi, Rinaldo Trotta, Armando Rastelli, Val Zwiller
On-demand generation of background-free single photons from a solid-state source
published pages: 93106, ISSN: 0003-6951, DOI: 10.1063/1.5020038
Applied Physics Letters 112/9 2019-06-18
2017 Marcus Reindl, Klaus D. Jöns, Daniel Huber, Christian Schimpf, Yongheng Huo, Val Zwiller, Armando Rastelli, Rinaldo Trotta
Phonon-Assisted Two-Photon Interference from Remote Quantum Emitters
published pages: 4090-4095, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.7b00777
Nano Letters 17/7 2019-06-18
2017 Adeline Orieux, Marijn A M Versteegh, Klaus D Jöns, Sara Ducci
Semiconductor devices for entangled photon pair generation: a review
published pages: 76001, ISSN: 0034-4885, DOI: 10.1088/1361-6633/aa6955
Reports on Progress in Physics 80/7 2019-06-18
2018 Katharina D. Zeuner, Matthias Paul, Thomas Lettner, Carl Reuterskiöld Hedlund, Lucas Schweickert, Stephan Steinhauer, Lily Yang, Julien Zichi, Mattias Hammar, Klaus D. Jöns, Val Zwiller
A stable wavelength-tunable triggered source of single photons and cascaded photon pairs at the telecom C-band
published pages: 173102, ISSN: 0003-6951, DOI: 10.1063/1.5021483
Applied Physics Letters 112/17 2019-06-18
2016 Iman Esmaeil Zadeh, Ali W. Elshaari, Klaus D. Jöns, Andreas Fognini, Dan Dalacu, Philip J. Poole, Michael E. Reimer, Val Zwiller
Deterministic Integration of Single Photon Sources in Silicon Based Photonic Circuits
published pages: 2289-2294, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.5b04709
Nano Letters 16/4 2019-06-18

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