Welcome to SuperQuLAN

Superconducting quantum circuits are one of the most promising platforms for realizing large-scale quantum computing devices, where in the near future a coherent integration of 100-1000 quantum bits (qubits) is feasible. However, the required temperatures of only a few mK currently restrict quantum operations to qubits that are located within a single, heavily shielded dilution refrigerator. This imposes a serious constraint on the realization of even larger quantum processors or the implementation of local- and wide-area quantum networks based on this technology.

The project SuperQuLAN is set out to address this important open problem and to demonstrate a first operational prototype quantum local area network of separated superconducting quantum processors. This work will be carried out by a multi-national team of scientists and industry partners who will develop key network components and quantum communication protocols that will facilitate in the long term the realization of large quantum computing clusters or even city-wide quantum networks using superconducting circuits.

The project is funded by the Horizon 2020 research and innovation programme of the European Union.


05.03.2021: Machine learning for certifying quantum many-body states

Together with collaborators at ICFO, Jordi Tura (MPQ, now AQA) has proposed a machine learning approach for certifying quantum many-body states with a minimal computational budget (arXiv:2103.03830). Such schemes will also be the basis for some of the QuLAN algorithms explored in this project.

18.01.2021: Shor's algorithm in one nanosecond

In collaboration with Peking University, our team at TU WIEN has investigated the fundamental limits for the speed of superconducting quantum processors and has shown that compared to the current state of the art, a more than hundredfold improvement in the gate times is still possible. Here is the pre-print on the arXiv:

21.12.2020: A first quantum local area network

The group of Andreas Wallraff at ETH Zürich has demonstrated for the first time the operation of a coherent quantum link between superconducting qubits that are housed in two spatially separated cryogenic systems. This is a key breakthrough for the SuperQuLAN project . Check out the original publication in Physical Review Letters and the synopsis in Physics.

23.11.2020: Bidirectional electro-optical conversion

Our partners at IST Austria have demonstrated a bidirectional electro-optical converter between microwave and optical photons operated at the quantum level. These results have now been published in Physical Review X.

01.11.2020: Jordi Tura - Assistant Professor in Leiden

Jordi Tura has been appointed Assistant Professor at the University of Leiden, where he joins the Applied Quantum Algorithms (aQa) group as a new faculty member. Congratulations! Jordi will remain an associated partner of SuperQuLAN.

03.09.2020: Kick-off Meeting

On Thursday, Sep. 3rd, all the PIs, postdocs and PhD students involved in the project meet for the first time to 'kick-off' the project, exchange ideas and to discuss the most urgent research tasks to address. Due to the Corona situation the meeting will be held online, but we stay optimistic and hope that we will also be able to meet in person in the near future.

01.09.2020: Official start of SuperQuLAN

With Sep. 1st, 2020 the SuperQuLAN project has officially started. We are excited about the next 3 years to come.