• Workshop for Quantum Repeaters and Networks (WQRN)

  • About WQRN

    The 1998 proposal introducing a quantum repeater resulted in high-profile efforts on vital components needed to establish a multi-node quantum network. Quantum repeaters utilize quantum entanglement, quantum memories, techniques for suppressing quantum errors and quantum teleportation to dramatically enhance both the reach and bit rate of quantum communication. Various experimental schemes have been proposed and components developed, and early experimental efforts are working towards the realization of a quantum repeater. Despite the progress, significant challenges remain, first in proof-of-principle demonstrations and then in the development of practical systems adequate for deployment in the field.


    The goal of this workshop is to bring the active research community together to discuss the progress, challenges and new possible directions for quantum repeaters and networks. We invite researchers working on key enabling technologies and system integration, protocols for connecting repeaters across network links with high fidelity, architectures for large-scale networks, and applications of distributed quantum entanglement.


    The WQRN has been and continues to be a limited-attendance, few-day workshop, in which participants are given the opportunity to share ideas, directions, and concerns to advance the state of the field. Talks are by invitation only and catered to broadly cover the applications, theory, components, and worldwide directions in quantum repeaters and networks. These talks frame group discussion sessions for which all participants are welcome to contribute; participants are also welcome to contribute to a poster session.

  • Image of David Rubenstein Forum

    The third WQRN will occur the weekend of
    August 19-21, 2022

    in Chicago, IL at the David Rubenstein Forum.

    For more details, tentative program, travel, application, and current sponsorship,
    visit the local page hosted by the Chicago Quantum Exchange:

  • Committees

    Steering Committee

    • Chair: Norbert Lütkenhaus (University of Waterloo, Canada)
    • Liang Jiang (University of Chicago, USA)
    • Thaddeus Ladd (HRL Laboratories, LLC, USA)
    • Tracy Northup (University of Innsbruck,  Austria)
    • Qudsia Quraishi (Army Research Laboratory, USA)
    • Rob Thew (University of Geneva, Switzerland)
    • Rodney Van Meter (Keio University, Japan)
    • Saikat Guha (University of Arizona, USA)
    • Kae Nemoto (Okinawa Institute of Science and Technology, Japan)
    • Eleni Diamanti (Sorbonne University, France)

    Program Subcommittee

    • Chair: Tracy Northup (University of Innsbruck,  Austria)
    • Liang Jiang (University of Chicago, USA)
    • Saikat Guha (University of Arizona, USA)
    • Ronald Hanson (T. U. Delft, Netherlands)

    Local Organization Subcommittee

    • Thaddeus Ladd (HRL Laboratoris, LLC, USA)
    • Liang Jiang (University of Chicago, USA)
    • David Shimomura (Chicago Quantum Exchange, USA)
    • Kate Timmerman (Chicago Quantum Exchange, USA)
  • Previous WQRNs

    Krumers Alpin Resort, Seefeld, Austria

    Seefeld, Austria, 2017

    The second WQRN was held in Seefeld, in the Austrian Alps, in September of 2017.


    What can we do with quantum networks? What do we want to do?

    • Stephanie Wehner, Delft University of Technology
    • Iordanis Kerenidis, CNRS Paris
    • Jonathan P. Dowling, Louisiana State University
    • Robert Broberg, Cisco Systems, Inc.
    • Damian Markham, CNRS, Université Pierre et Marie Curie
    • Joe Fitzsimmons, National University of Singapore
    Figures of merit: Developing a common language
    • Saikat Guha, University of Arizona
    • Wolfgang Dür, University of Innsbruck
    • Martin Roetteler, Microsoft Research
    • Stefano Pirandola, University of York
    • Kae Nemoto, National Institute of Informatics
    • Mohsen Razavi, University of Leeds
    Component technologies and building blocks
    • Ronald Hanson, Delft University of Technology
    • Christopher Monroe, JQI and U. Maryland
    • Ruffin Evans, Harvard University
    • Mikael Afzelius, University of Geneva
    • Gerhard Rempe, Max Planck Institute of Quantum Optics
    • Alex Kuzmich, University of Michigan
    • Julien Laurat, Laboratoire Kastler Brossel, UPMC
    Scalability toward practical applications and new approaches
    • Peter van Loock, University of Mainz
    • Cheng-Zhi Peng, University of Science and Technology of China
    • Khabat Heshami, NRC Ottawa
    • Anders Sørensen, Niels Bohr Institute, University of Copenhagen
    • Kartik Srinivasan, National Institute of Standards and Technology
    • Christine Muschik, University of Innsbruck
    • Nicolas Sangouard, University of Basel
    One of the key speakers from each session provided an overview of the topic.
    Merrill Hall at Asilomar Conference Grounds

    Asilomar, USA, 2015

    The first WQRN was held in the historic coastal location of Asilomar, in Pacific Grove, California, in May of 2015.


    Quantum Repeaters: Objectives, Definitions and Architecture

    • Norbert Lütkenhaus, University of Waterloo
    • Saikat Guha, BBN Technologies
    Generations of Quantum Repeaters
    • Bill Munro, Nippon Telegraph and Telephone Corporation
    • Kae Nemoto, National Institute of Informatics
    • Sreraman Muralidharan,Yale University
    Quantum Repeater Architecture Under Development
    • Jungsang Kim, Duke University
    • Wolfgang Tittel, University of Calgary
    • Mikael Afzelius, University of Geneva
    • Matt Sellers, Australian National University
    • Cody Jones, HRL Laboratories, LLC
    Panel on Quantum Networks
    • Chip Elliott, BBN Technologies
    • Joe Fitzsimons, National University of Singapore
    • Stephanie Barz, University of Oxford
    • Gabriel Durkin, NASA Ames Research Center
    Quantum Repeater Components
    • Rainer Blatt, University of Innsbruck
    • Mark Saffman, University of Wisconsin
    • Andrew Shields, Toshiba
    • Michael Zugenmaier, Niels Bohr Institute
    • Jeremy O'Brien, University of Bristol
    • Thomas Gerrits, National Institute of Standards and Technology
    • Geoff Pryde, Griffith University
    • Kartik Srinivasan, National Institute of Standards and Technology
    • Pascale Senellart, CNRS - Laboratoire de Photonique et de Nanostructures
    • Xiaohui Bao, University of Science and Technology of China
    Quantum Repeater Technologies
    • Bob Peterson, University of Colorado, Boulder
    • Charles Santori, HP Labs
    • Mikael Afzelius, University of Geneva
    • Dirk Englund, Massachusetts Institute of Technology
    • Andreas Reiserer, Kavli Institute of Nanoscience, Delft University of Technology
    Each session featured discussions led by members of the steering committee.
  • FAQ

    Frequently Asked Questions

    Pagoda at Kiyomizu-dera in Kyoto, Japan


    Q1. How can I learn more?

    Contact us using the form below if you have questions.

    Q2: How is WQRN organized?

    WQRN is organized according to its charter, which indicates how the steering committee is assembled and updated, as well as how local organization and program planning are conducted.

    Q3: How do I register to attend the workshop?

    Please visit the local page for the upcoming workshop for program, travel, registration, and more.

  • Contact Us

    Drop us a note here if you have urgent questions. Otherwise, please be patient as we add more information!

    Site maintained by
    Rod Van Meter