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Quantum communication networks

Total Cost €


EC-Contrib. €






Project "QINTERNET" data sheet

The following table provides information about the project.


Organization address
address: STEVINWEG 1
city: DELFT
postcode: 2628 CN

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 Netherlands [NL]
 Total cost 1˙498˙725 €
 EC max contribution 1˙498˙725 € (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. [€] 
1    TECHNISCHE UNIVERSITEIT DELFT NL (DELFT) coordinator 1˙498˙725.00


 Project objective

My goal is to overcome the two-most pressing theoretical challenges necessary to build large-scale quantum communication networks: routing and designing protocols that use them to solve useful tasks. In two interconnected projects, I will devise entirely new concepts, models and mathematical methods that take into account the intricacies of real world quantum devices that can operate on only very few quantum bits at a time.

(1) Security: I will prove the security of quantum cryptographic protocols under realistic conditions, and implement them in collaboration with experimentalists. I will develop a general theory and practical tests for the security of multi-party cryptographic primitives using untrusted quantum devices. This is mathematically challenging due to the possibility of entanglement between the devices.

(2) Routing: I will initiate the systematic study of effective routing in a quantum communication network. This is necessary for quantum networks to grow in scale. Quantum entanglement offers very different means of routing messages than is possible in classical networks, and poses genuinely new challenges to computer science. I will design routing protocols in a multi-node quantum network of potentially different physical implementations, i.e., hybrid networks, that will establish a new line of research in my field.

Quantum networks are still in their infancy, even though quantum communication offers unparalleled advantages that are provably impossible using classical communication. Building a quantum network is an interdisciplinary effort bringing together computer science, physics, and engineering. I am in a unique position in computer science, since I have recently joined QuTech where I have direct access to small quantum devices - bringing me tantalizingly close to seeing such networks realized. As with early classical networks, it is difficult to predict where our journey will end, but my research will join theory and experiment to move forward.


year authors and title journal last update
List of publications.
2018 Fabian Furrer, Tobias Gehring, Christian Schaffner, Christoph Pacher, Roman Schnabel, Stephanie Wehner
Continuous-variable protocol for oblivious transfer in the noisy-storage model
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-03729-4
Nature Communications 9/1 2019-06-19
2016 Jędrzej Kaniewski, Stephanie Wehner
Device-independent two-party cryptography secure against sequential attacks
published pages: 55004, ISSN: 1367-2630, DOI: 10.1088/1367-2630/18/5/055004
New Journal of Physics 18/5 2019-06-19
2017 Filip Rozpędek, Jędrzej Kaniewski, Patrick J Coles, Stephanie Wehner
Quantum preparation uncertainty and lack of information
published pages: 23038, ISSN: 1367-2630, DOI: 10.1088/1367-2630/aa5d64
New Journal of Physics 19/2 2019-06-19
2017 Suzanne B van Dam, Peter C Humphreys, Filip Rozpędek, Stephanie Wehner, Ronald Hanson
Multiplexed entanglement generation over quantum networks using multi-qubit nodes
published pages: 34002, ISSN: 2058-9565, DOI: 10.1088/2058-9565/aa7446
Quantum Science and Technology 2/3 2019-06-19
2017 Patrick J. Coles, Mario Berta, Marco Tomamichel, Stephanie Wehner
Entropic uncertainty relations and their applications
published pages: , ISSN: 0034-6861, DOI: 10.1103/RevModPhys.89.015002
Reviews of Modern Physics 89/1 2019-06-19
2016 C. Pfister, J. Kaniewski, M. Tomamichel, A. Mantri, R. Schmucker, N. McMahon, G. Milburn, S. Wehner
A universal test for gravitational decoherence
published pages: 13022, ISSN: 2041-1723, DOI: 10.1038/ncomms13022
Nature Communications 7 2019-06-19
2019 Bas Dirkse, Jonas Helsen, Stephanie Wehner
Efficient unitarity randomized benchmarking of few-qubit Clifford gates
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.99.012315
Physical Review A 99/1 2019-06-06
2019 Mark Steudtner, Stephanie Wehner
Quantum codes for quantum simulation of fermions on a square lattice of qubits
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.99.022308
Physical Review A 99/2 2019-06-06
2018 Axel Dahlberg, Stephanie Wehner
Transforming graph states using single-qubit operations
published pages: 20170325, ISSN: 1364-503X, DOI: 10.1098/rsta.2017.0325
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376/2123 2019-04-18
2018 Jérémy Ribeiro, Gláucia Murta, Stephanie Wehner
Fully device-independent conference key agreement
published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.97.022307
Physical Review A 97/2 2019-04-18
2019 Axel Dahlberg, Stephanie Wehner
SimulaQron—a simulator for developing quantum internet software
published pages: 15001, ISSN: 2058-9565, DOI: 10.1088/2058-9565/aad56e
Quantum Science and Technology 4/1 2019-04-18
2018 Stephanie Wehner, David Elkouss, Ronald Hanson
Quantum internet: A vision for the road ahead
published pages: eaam9288, ISSN: 0036-8075, DOI: 10.1126/science.aam9288
Science 362/6412 2019-04-18
2018 Mark Steudtner, Stephanie Wehner
Fermion-to-qubit mappings with varying resource requirements for quantum simulation
published pages: 63010, ISSN: 1367-2630, DOI: 10.1088/1367-2630/aac54f
New Journal of Physics 20/6 2019-05-29
2017 Remco van der Meer, Nelly Huei Ying Ng, Stephanie Wehner
Smoothed generalized free energies for thermodynamics
published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.96.062135
Physical Review A 96/6 2019-04-18
2018 Jonas Helsen, Mark Steudtner, Menno Veldhorst, Stephanie Wehner
Quantum error correction in crossbar architectures
published pages: 35005, ISSN: 2058-9565, DOI: 10.1088/2058-9565/aab8b0
Quantum Science and Technology 3/3 2019-04-18
2018 Jonas Helsen, Joel J. Wallman, Stephanie Wehner
Representations of the multi-qubit Clifford group
published pages: 72201, ISSN: 0022-2488, DOI: 10.1063/1.4997688
Journal of Mathematical Physics 59/7 2019-04-18
2018 Corsin Pfister, M. Adriaan Rol, Atul Mantri, Marco Tomamichel, Stephanie Wehner
Capacity estimation and verification of quantum channels with arbitrarily correlated errors
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-017-00961-2
Nature Communications 9/1 2019-04-18
2018 Ruoyu Li, Luca Petit, David P. Franke, Juan Pablo Dehollain, Jonas Helsen, Mark Steudtner, Nicole K. Thomas, Zachary R. Yoscovits, Kanwal J. Singh, Stephanie Wehner, Lieven M. K. Vandersypen, James S. Clarke, Menno Veldhorst
A crossbar network for silicon quantum dot qubits
published pages: eaar3960, ISSN: 2375-2548, DOI: 10.1126/sciadv.aar3960
Science Advances 4/7 2019-04-18
2016 K Goodenough, D Elkouss, S Wehner
Assessing the performance of quantum repeaters for all phase-insensitive Gaussian bosonic channels
published pages: 63005, ISSN: 1367-2630, DOI: 10.1088/1367-2630/18/6/063005
New Journal of Physics 18/6 2019-05-29
2018 F Rozpędek, K Goodenough, J Ribeiro, N Kalb, V Caprara Vivoli, A Reiserer, R Hanson, S Wehner, D Elkouss
Parameter regimes for a single sequential quantum repeater
published pages: 34002, ISSN: 2058-9565, DOI: 10.1088/2058-9565/aab31b
Quantum Science and Technology 3/3 2019-04-18
2018 Filip Rozpędek, Thomas Schiet, Le Phuc Thinh, David Elkouss, Andrew C. Doherty, Stephanie Wehner
Optimizing practical entanglement distillation
published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.97.062333
Physical Review A 97/6 2019-04-18

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