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Entanglement distribution via Semiconductor-Piezoelectric Quantum-Dot Relays

Total Cost €


EC-Contrib. €






Project "SPQRel" data sheet

The following table provides information about the project.


Organization address
address: Piazzale Aldo Moro 5
city: ROMA
postcode: 185

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 Italy [IT]
 Project website
 Total cost 1˙499˙962 €
 EC max contribution 1˙499˙962 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-STG
 Funding Scheme ERC-STG
 Starting year 2016
 Duration (year-month-day) from 2016-03-01   to  2021-02-28


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
2    UNIVERSITAT LINZ AT (LINZ) participant 502˙799.00


 Project objective

The development of scalable quantum devices that generate and distribute quantum entanglement over distant parties will bring about a revolution in communication science and technology. Epitaxial quantum dots (QDs) embedded in conventional diodes are arguably the most attractive quantum devices, since they combine the capability of QDs to deliver triggered and high-quality entangled photons with the tools of the mature semiconductor technology. However, it is at present impossible to use remote QDs for the distribution of entangled photons over large distances, mainly due to the lack of control over their electronic structure. Recently, the PI has grasped that the solution to this problem resides in hybrid technologies. He has conceived and developed a novel class of semiconductor-piezoelectric quantum devices where different external fields are combined to reshape the electronic structure of any arbitrary QD so that single and polarization-entangled photons can be generated with unprecedented quality, efficiency, and speed, a major breakthrough for solid-state-based quantum communication. In this project the PI will make the next pioneering step and develop the hybrid technology to the limit where advanced quantum communication protocols previously inaccessible to QDs can now be performed. The objective of the proposal is mainly to i) develop the first electrically-controlled wavelength-tunable source of indistinguishable and entangled photons, which can be exploited to ii) teleport entanglement over two distant QD-based qubits (the quantum relay) and to iii) attempt the construction of a quantum network where entangled photons from remote quantum relays are interconnected using warm atomic vapours. The new hybrid technology that will be developed in this project to achieve i) will open new grounds in research fields well beyond quantum optics and quantum communication, and in particular the whole research area of strain-engineering of semiconductor thin-films.


year authors and title journal last update
List of publications.
2019 Giovanni Piredda, Sandra Stroj, Dorian Ziss, Julian Stangl, Rinaldo Trotta, Javier Martín-Sánchez, Armando Rastelli
Micro-machining of PMN-PT Crystals with Ultrashort Laser Pulses
published pages: , ISSN: 0947-8396, DOI: 10.1007/s00339-019-2460-9
Applied Physics A 125/3 2019-09-04
2019 Eva Schöll, Lukas Hanschke, Lucas Schweickert, Katharina D. Zeuner, Marcus Reindl, Saimon Filipe Covre da Silva, Thomas Lettner, Rinaldo Trotta, Jonathan J. Finley, Kai Müller, Armando Rastelli, Val Zwiller, Klaus D. Jöns
Resonance Fluorescence of GaAs Quantum Dots with Near-Unity Photon Indistinguishability
published pages: 2404-2410, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.8b05132
Nano Letters 19/4 2019-09-04
2018 Marcus Reindl, Daniel Huber, Christian Schimpf, Saimon F. Covre da Silva, Michele B. Rota, Huiying Huang, Val Zwiller, Klaus D. Jöns, Armando Rastelli, Rinaldo Trotta
All-photonic quantum teleportation using on-demand solid-state quantum emitters
published pages: eaau1255, ISSN: 2375-2548, DOI: 10.1126/sciadv.aau1255
Science Advances 4/12 2019-09-04
2019 H. M. G. A. Tholen, J. S. Wildmann, A. Rastelli, R. Trotta, C. E. Pryor, E. Zallo, O. G. Schmidt, P. M. Koenraad, A. Yu. Silov
Active tuning of the g -tensor in InGaAs/GaAs quantum dots via strain
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.99.195305
Physical Review B 99/19 2019-09-04
2018 Petr Klenovský, Petr Steindl, Johannes Aberl, Eugenio Zallo, Rinaldo Trotta, Armando Rastelli, Thomas Fromherz
Effect of second-order piezoelectricity on the excitonic structure of stress-tuned In(Ga)As/GaAs quantum dots
published pages: 245314, ISSN: 2469-9969, DOI: 10.1103/PhysRevB.97.245314
Physical Review B 97/24 2019-05-28
2018 Javier Martín-Sánchez, Rinaldo Trotta, Antonio Mariscal, Rosalía Serna, Giovanni Piredda, Sandra Stroj, Johannes Edlinger, Christian Schimpf, Johannes Aberl, Thomas Lettner, Johannes Wildmann, Huiying Huang, Xueyong Yuan, Dorian Ziss, Julian Stangl, Armando Rastelli
Strain-tuning of the optical properties of semiconductor nanomaterials by integration onto piezoelectric actuators
published pages: 13001, ISSN: 0268-1242, DOI: 10.1088/1361-6641/aa9b53
Semiconductor Science and Technology 33/1 2019-05-28
2017 Francesco Basso Basset, Sergio Bietti, Marcus Reindl, Luca Esposito, Alexey Fedorov, Daniel Huber, Armando Rastelli, Emiliano Bonera, Rinaldo Trotta, Stefano Sanguinetti
High-Yield Fabrication of Entangled Photon Emitters for Hybrid Quantum Networking Using High-Temperature Droplet Epitaxy
published pages: 505-512, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.7b04472
Nano Letters 18/1 2019-05-28
2018 Daniel Huber, Marcus Reindl, Johannes Aberl, Armando Rastelli, Rinaldo Trotta
Semiconductor quantum dots as an ideal source of polarization-entangled photon pairs on-demand: a review
published pages: 73002, ISSN: 2040-8978, DOI: 10.1088/2040-8986/aac4c4
Journal of Optics 20/7 2019-05-28
2018 Xueyong Yuan, Fritz Weyhausen-Brinkmann, Javier Martín-Sánchez, Giovanni Piredda, Vlastimil Křápek, Yongheng Huo, Huiying Huang, Christian Schimpf, Oliver G. Schmidt, Johannes Edlinger, Gabriel Bester, Rinaldo Trotta, Armando Rastelli
Uniaxial stress flips the natural quantization axis of a quantum dot for integrated quantum photonics
published pages: 1-8, ISSN: 2041-1723, DOI: 10.1038/s41467-018-05499-5
Nature Communications 9/1 2019-05-28
2018 Daniel Huber, Marcus Reindl, Saimon Filipe Covre da Silva, Christian Schimpf, Javier Martín-Sánchez, Huiying Huang, Giovanni Piredda, Johannes Edlinger, Armando Rastelli, Rinaldo Trotta
Strain-Tunable GaAs Quantum Dot: A Nearly Dephasing-Free Source of Entangled Photon Pairs on Demand
published pages: 33902, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.121.033902
Physical Review Letters 121/3 2019-05-28
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 2019-05-28
2017 Dorian Ziss, Javier Martín-Sánchez, Thomas Lettner, Alma Halilovic, Giovanna Trevisi, Rinaldo Trotta, Armando Rastelli, Julian Stangl
Comparison of different bonding techniques for efficient strain transfer using piezoelectric actuators
published pages: 135303, ISSN: 0021-8979, DOI: 10.1063/1.4979859
Journal of Applied Physics 121/13 2019-06-19
2017 Huiying Huang, Rinaldo Trotta, Yongheng Huo, Thomas Lettner, Johannes S. Wildmann, Javier Martín-Sánchez, Daniel Huber, Marcus Reindl, Jiaxiang Zhang, Eugenio Zallo, Oliver G. Schmidt, Armando Rastelli
Electrically-Pumped Wavelength-Tunable GaAs Quantum Dots Interfaced with Rubidium Atoms
published pages: 868-872, ISSN: 2330-4022, DOI: 10.1021/acsphotonics.6b00935
ACS Photonics 4/4 2019-06-19
2017 Daniel Huber, Marcus Reindl, Yongheng Huo, Huiying Huang, Johannes S. Wildmann, Oliver G. Schmidt, Armando Rastelli, Rinaldo Trotta
Highly indistinguishable and strongly entangled photons from symmetric GaAs quantum dots
published pages: 15506, ISSN: 2041-1723, DOI: 10.1038/ncomms15506
Nature Communications 8 2019-06-19
2017 Johannes Aberl, Petr Klenovský, Johannes S. Wildmann, Javier Martín-Sánchez, Thomas Fromherz, Eugenio Zallo, Josef Humlíček, Armando Rastelli, Rinaldo Trotta
Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect
published pages: 45414, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.96.045414
Physical Review B 96/4 2019-06-19
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: 75430, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.96.075430
Physical Review B 96/7 2019-06-19
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 2019-06-19

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