ML4Q

Matter and Light for Quantum Computing

 

About

“Matter and Light for Quantum Computing” (ML4Q) is a Cluster of Excellence established in 2019 within the Excellence Strategy of the German federal and state governments. In ML4Q, scientists from the universities of CologneAachen and Bonn as well as Forschungszentrum Jülich come together to spearhead quantum computing research.

Using the principles of quantum mechanics, it is the long-term goal of ML4Q to develop new computing and networking architectures with a power beyond anything classically imaginable. Quantum computers could be powerful tools in key areas such as materials design, pharmaceutics, or artificial intelligence. Quantum communication could be made effectively secure. ML4Q builds on the complementary expertise in the three key research fields of solid-state physics, quantum optics, and quantum information science to develop the best hardware platform for quantum information technology, and provide comprehensive blueprints for a functional quantum information network. 

Goal

The long-term goal of the cluster is to realize network and processing architectures protected by error correction protocols and eventually connected to a quantum version of the internet. This goal defines a hierarchy of challenges, both in fundamental science and in technology, which must be overcome at early and intermediate stages.

ML4Q at a Glance

Science

Combined expertise in key disciplines of quantum computation

Equity, Diversity and Inclusion

Creating an inclusive work environment

People & Institutions

View our members

Outreach

Sharing the passion for quantum physics

Early Career

Training the next generation to pull quantum computation past the application threshold

News

Publications, events and more

Science Highlights

Nov 11 2025

Coherent Interaction of 2⁢𝑠 and 1⁢𝑠 Exciton States in Transition-Metal Dichalcogenide Monolayers

Coherent Interaction of 2⁢𝑠 and 1⁢𝑠 Exciton States in Transition-Metal Dichalcogenide MonolayersIn a new study, scientists at...
Oct 20 2025

Thermodynamics and state preparation in a two-state system of light

Thermodynamics and state preparation in a two-state system of light   The manuscript reports on the observation of a...
Oct 20 2025

Anticoncentration in Clifford Circuits and Beyond: From Random Tensor Networks to Pseudomagic States

Anticoncentration in Clifford Circuits and Beyond: From Random Tensor Networks to Pseudomagic States   A central question...
Jul 28 2025

Next Stop ML4Q with Neil Dowling

In "Next stop ML4Q" scientists who newly joined ML4Q talk about their journey in science and academia and how they joined ML4Q....
Jul 07 2025

Soapbox Science 2025

Soapbox Science 2025 in the heart of DüsseldorfOn 28th of June the Düsseldorf Rheinpromenade transformed into a vibrant space...
Jul 02 2025

Sebastian Kindel On His ARQUE Journey

Photo: © Sebastian KindelInside ARQUE Sebastian Kindel on his PhD journey and joining the quantum hardware startupWhen we think...
May 15 2025

New toolbox helps tackle dynamics in long-range interacting particles

New toolbox helps tackle dynamics in long-range interacting particles Latest research from the Turkheshi Group based at THP...
May 14 2025

Generating quantum randomness with Amazon Braket

This is a blog post which Mario Berta (Aachen, ML4Q Professor since December 2022) wrote back in 2021 for the AWS Quantum...
May 09 2025

Spring R(h)ein Quantum School 2025 – International Spring School on Quantum Information Draws Global Participation

Spring R(h)ein Quantum School 2025 Draws Global ParticipationFrom March 24 to 28, 2025, Heinrich Heine University Düsseldorf...
Apr 11 2025

New Quantum Error Correction Code Published in PRX Quantum

New Quantum Error Correction Code Published in PRX Quantum In a collaboration of the team of Markus Müller at RWTH Aachen and...

OPPORTUNITIES FOR YOUNG SCIENTISTS

Attracting and retaining the best young talents in the field by offering competitive career opportunities is a top priority for ML4Q. 

• Undergraduate grants 

• Undergraduate research internship 

• Independence grants for postdoctoral researchers 

• New tenure-track professorships 

• ML4Q Research School with cluster-specific courses, e.g. “Platforms for Quantum Technologies” for Master students 

• Master program for Quantum Technology in Aachen as well as specialized lectures on quantum technologies in Bonn and Cologne

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Professors

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PHD Students

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Female Scientists