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News & Meetings.

2nd International GaAs Quantum Dots Workshop 2024
17-19 April 2024

Traunkirchen, Hotel DasTraunsee

After the success of the 1st international workshop on GaAs quantum dots, held at the University of Oxford from May 22-23, 2023, this workshop brings together scientists working on the physics and application of GaAs quantum dots within the FWF Forschungsgruppe FG5, the new Quantera  project MEEDGARD, and other projects. The topics addressed by the workshop are:

  • epitaxial growth and physical properties of GaAs quantum dots and heterostructures
  • advanced device fabrication enabling low-noise operation, tunability, and high light-matter interaction
  • novel methods to excite and control excitons and spins in quantum dots for photon generation and information storage
  • advanced spectroscopy methods to access electronic and nuclear spin properties in single quantum dots
  • quantum optics experiments with multiple photons emitted by quantum dots

Sponsored by:


We have a pre-booked number of hotel rooms in the seminar hotel in Traunkirchen and in the nearby village of Ebensee. From Ebensee, a bus leaves every hour to Traunkirchen, it takes 10 minutes. You can download the bus plan here, opens an external URL in a new window. There are also train connections, which can be found at oebb.at, opens an external URL in a new window

Prices per person (including breakfast) are as follows:

Seminar hotel  "DAS TRAUNSEE":, opens an external URL in a new window € 153 (single room) /  € 101,50 (double room)
Hotel Post, Ebensee, opens an external URL in a new window: € 60 (double room) / € 70 (single room)


In the registration process you can indicate that you need a room booked, you will then be contacted by us about the details (arrival, departure, room type) and receive an invoice for the room booking.

Please note that room cancellation is free of charge until 01 March, 2024. Cancellations until March 22, 2024 are 50% refundable, after this date no refunds will be possible.


  • Registration Fee: 180,-- EUR per person
    (including coffee breaks, lunches and workshop dinner) Deadline 1 March 2024

    Room booking costs: seperate


Past Meetings

Group Foto 10. May 2022 Linz
Program FG5 Meeting Linz, 10.5.2022

FG5 Meeting, 22.11.2021 (Online)

9:00 - 9:10:        Welcome

9:10 - 9:40:        Matthias Englbrecht (Univ. of Innsbruck, Institute for theoretical physics), Characterizing the indistinguishability of identical particles

9:40 - 10:10:      Vikas Remesh (Univ. of Innsbruck, Institute for theoretical physics), Two-photon adiabatic rapid passage in GaAs quantum dots: implications for multiphoton generation

10:10 - 10:40:    Julian Münzberg (Univ. of Innsbruck, Institute for experimental physics), Towards a deterministic multiphoton source from demultiplexed quantum dot photons

10:40 - 11:00:    Coffee Break

11:00 - 12:00:    Open talk - Chao-Yang Lu (University of Science and Technology China, Hefei): Photonic quantum computational advantage

12:15 - 13:15:    Lunch break

13:15 - 14:00:    Juan Loredo (Univ. of Vienna, Faculty of Physics): Resource-efficient and scalable multi-photon experiments

14:00 - 14:45:    Mathieu Bozzio (Univ. of Vienna, Faculty of Physics): Optimizing quantum dot single-photon sources for quantum cryptography

14:45 - 15:10:    Christian Schimpf & Maximilian Aigner (JKU Linz, Semiconductor Physics Division): QKD with entangled photons from a diode

15:10 – 15:30:    Coffee break

15:30 - 15:50:    Saimon Covre da Silva (JKU Linz, Semiconductor Physics Division): GaAs quantum dots grown by droplet etching epitaxy as quantum light sources

15:50 - 16:10:    Thomas Oberleithner (JKU Linz, Semiconductor Physics Division): Designing photonic structures for GaAs QDs using FDTD simulations

16:10 - 16:30:    Tobias Krieger (JKU Linz, Semiconductor Physics Division): Fabrication of photonic devices for efficient photon pair extraction from GaAs QDs

16:30:               Closing

Kick-Off-Meeting via ZOOM
21 October 2020, 13:00

13:00 - 13:10  Welcome and introduction to the scopes of FG 5 (Armando Rastelli)

13:10 - 13:25  Presentation of the principal researchers and team members contributing to the project (all participants)

13:25 - 13:45  Project area 1: Fabrication and characterization of scalable QD devices  (Armando Rastelli)

13:45 - 14:05  Project area 2: Control and application of quantum dot devices (Gregor Weihs)

14:05 - 14:25 Project area 3: Experimental Quantum Information Processing (QIP) protocols in integrated waveguide circuits (Philip Walther)

14:25 - 14:45 Project Area 4: Theory of photonic QIP and multipartite entanglement (Barbara Kraus)

14:45 - 15:00  Discussion / Coffee break

15:00 - 16:30  Executive board meeting