The Jülich UNified Infrastructure for Quantum computing provides science and industry access to state-of-the-art quantum computing devices.



JUNIQ is a manufacturer-independent, comprehensive, public quantum computing user facility. JUNIQ, through its uniform quantum computing Platform as a Service (QC-PaaS), offers European users support and access to quantum computer emulators and quantum computing technologies of different types and levels of technological maturity. JUNIQ integrates quantum computers in the form of quantum-classical hybrid computing systems into the modular HPC environment of the Jülich Supercomputing Centre. A comprehensive overview is available in the NIC Symposium 2022 Proceedings.

The following Emulators and Quantum Computers are currently accessible or will be made accessible via the JUNIQ-Cloud platform. The availabilities can be found here.


Quantum computer emulators simulate the operation of quantum computing devices on conventional computers.


The Jülich Universal Quantum Computer Simulator JUQCS is a massively parallel emulator of gate-based quantum computers for conventional computers of any type and size with CPUs and GPUs. JUQCS has set the world record of simulating a universal quantum computer with 48 qubits. On JUWELS, one of the HPC systems at the Jülich Supercomputing Centre, JUQCS can simulate quantum circuits of up to 43 qubits.

Eviden Qaptiva 800

The Qaptiva 800 is a platform for simulating different quantum technologies, being able to emulate up to 40 qubits in either noise- or noiseless situations. Learn more on Eviden's Website.

Quantum Computers

D-Wave Advantage™ System JUPSI

The D-Wave Advantage System is an annealing quantum computer with more than 5000 superconducting qubits. With quantum annealing, computations are carried out by first bringing a connected system of qubits into a simple and known lowest energy state described in the basis of an initial Hamiltonian. This state turns out to be a uniform superposition state described in the basis of the final Hamiltonian that encodes the problem to solve. The system is then shifted to the lowest energy state of the sought classical problem, the second Hamiltonian, by adiabatically changing the interactions of the qubits. Quantum annealing can especially be used to solve optimization, sampling and machine learning problems. The system was recently updated with the fast anneal feature, accessible through the Leap™ real-time quantum cloud service. Learn more on D-Wave’s website.

Quantum Simulator

PASQAL's Fresnel quantum simulator based on the neutral atom technology is capable of controlling 100+ qubits in 2D arrays using optical tweezers. It will be tightly integrated into an HPC environment within the JUNIQ platform to enable hybrid HPC/quantum computations in the context of EuroHPC JU project HPCQS, providing non-commercial access to the European public. Learn more on Pasqal’s website.

QSolid Quantum Computer

QSolid is a consortium of 25 German research institutes and companies focused on improving the error rate of qubits over the 5-year period. The starting goal is to produce a quantum computer with 10 high-quality qubits, with plans of reaching up to 30 qubits by the end of its run. The ecosystem developed by the project will be fully integrated into JUNIQ's supercomputing environment and made accessible to external users.

OpenSuperQplus Quantum Computer

In the Quantum Flagship project OpenSuperQplus, a gate-based quantum computer with superconducting qubits is currently being developed.


Forschungszentrum Jülich / Michael Bresser

Plans for a new quantum computer building started in early 2019 (see animated JUNIQ building).The construction of the JUNIQ building officially began on 30 July 2020 with the groundbreaking ceremony by Kristel Michielsen, Thomas Lippert, Wolfgang Marquardt, Birgit Spengler, and Harald Lange (see news flash). The progress of construction could be followed via a webcam, the images of which were edited into a time-lapse video. In summer 2021, the construction of the building was completed. Since fall 2021, it hosts a D-Wave Advantage system. A Pasqal Quantum Simulator is expected to be installed in the near future. Take a virtual tour through the building and learn more about its architecture, its special infrastructure, and the hosted and planned quantum computing devices.

Video Clips

Find out more about JUNIQ and its projects on JSC’s YouTube channel.

Last Modified: 22.04.2024