Welcome to ct.qmat

We are the Cluster of Excellence ct.qmat – Complexity and Topology in Quantum Matter. Established in 2019, the Würzburg-Dresden Cluster ct.qmat is a leading international center for research on topological and complex quantum matter. Our aim is to develop a deep understanding of quantum phenomena in general and to identify materials in which those phenomena are observed in the laboratory. This is supported by educating and attracting top-level students and scientists as well as by supplementing infrastructure in both Würzburg and Dresden.

ct.qmat in a Nutshell

 

ct.qmat unites two of the leading research hubs in condensed matter physics: Dresden and Würzburg.

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Powerful Network for Cutting-Edge Research. ct.qmat’s Würzburg spokesperson Ralph Claessen highlights its remarkable achievements:

 

"At the heart of our research are complexity and topology, two exciting key areas in modern condensed matter physics. We’ve developed quantum materials with unprecedented features, such as manganese bismuth telluride. Our team has made significant strides in superconductivity, topological insulators, and topological lasers. From two universities and our external partners, a network has grown that’s truly greater than the sum of its parts."

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Continuing the Quantum Revolution. ct.qmat is leading the way, says its Dresden spokesperson Matthias Vojta:

 

"We’re leading the field with our discoveries. Developing a wide variety of materials using state-of-the-art synthesis techniques, we’ve firmly established Würzburg and Dresden as Germany’s premier centers of topological materials physics. We’re driven by curiosity and a commitment to systematically understanding topological physics. We also reach out to the public, including by launching an escape room for kids in 2024. That’s something we’re really passionate about!"

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ct.qmat Report Reveals Trends in Quantum Materials Research
In its Mid-Term Report, the ct.qmat Cluster of Excellence offers a snapshot of its research activities and highlights key developments. The publication illustrates the strong connections fostered by the collaborative project between JMU Würzburg and TU Dresden, linking two leading research centers in condensed matter physics. New ideas are already in the works.

Download (pdf, 4.42 MB)

Events

  • Qa-Map-062024

    04 Dec 2024
    11:00 am – 12:30 pm

    Quantum Alliance Community Networking Event

    You will have the opportunity to (re-)connect with young scientists from all over Germany and get insights into the job market for PhDs and Postdocs in Germany. In 10-minute talks, alumni of our member institutions will give an overview of the challenges and advantages of leaving the university to work in industry or a government lab and the do's and don'ts during the application process. Following this there will be a general panel discussion followed by networking sessions.

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  • Jena-Am-Abend-Quelle-Jenakultur-Foto-Jenaparadies-Scaled

    31 Mar – 02 Apr 2025

    Sixth QMA Retreat (Jena)

    In Jena we will meet and talk about your projects.

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  • Jena-Am-Abend-Quelle-Jenakultur-Foto-Jenaparadies-Scaled

    02 – 04 Apr 2025

    Third Spring School "Topological Quantum Matter"

    We will meet in Jena directly after the fifth QMA retreat and learn more about complexity and topology in quantum matter.

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News

  • Pressebild-Escaperoom-Katzeq-Dsc01457-Fototobiasritz-1920x1080

    04 Oct 2024

    Don’t delay—book now!: Quantum Adventures in Dresden During Fall Holidays at the Kitty Q Escape Room

    Germany’s first quantum physics-themed escape room for youngsters—Kitty Q at Technische Sammlungen Dresden—has added more available slots just in time for Saxony’s fall break.

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  • Trion-Bygiuseppemeneghini-16x9web

    27 Sept 2024

    Temporarily apart: Research team succeeds in ultra-fast switching of tiny light sources

    An international team led by the Cluster of Excellence ct.qmat has now made remarkable progress with an experiment conducted at Helmholtz-Zentrum Dresden-Rossendorf (HZDR): The experts were able to induce an extremely fast switching process between electrically neutral and charged luminescent particles in an ultra-thin, effectively two-dimensional material. Published in Nature Photonics.

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  • Ctqmat24-Conference-Web-Header-Neu

    18 Sept 2024

    International Conference Spotlights New Quantum Phenomena: CT.QMAT24 puts Dresden at the Center of Quantum Physics

    About 250 scientists from 14 countries will explore the latest findings from pioneering global research at the International Conference on Complexity and Topology in Quantum Matter CT.QMAT24 in Dresden from September 23 to 27, 2024.

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  • 0916quantengravitation-Www-1

    17 Sept 2024

    Würzburg Physics Team Electrifies the Quantum World

    Researchers from the Cluster of Excellence ct.qmat have developed a method to model a central theory of quantum gravity in the laboratory. Their goal: to decipher previously unexplained phenomena in the quantum world.

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  • 240819-Kagome-Metalle-K-1920x1080

    23 Aug 2024

    Würzburg Theory Experimentally Confirmed: Kagome Superconductor Makes Waves

    Superconductivity theory proposed by Würzburg physics team validated in an international experiment: Cooper pairs display wave-like distribution in Kagome metals, paving the way for new technological applications like superconducting diodes.

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  • Ctd-Qmat-Slider

    22 Aug 2024

    Dynamic Progress into the Second Funding Period: Würzburg-Dresden Cluster of Excellence Seeks Continued Funding with New Name ctd.qmat

    Under its new name, ctd.qmat—Complexity, Topology and Dynamics in Quantum Matter, the Würzburg-Dresden Cluster of Excellence has submitted its application for the second funding period from 2026 to 2032 within the Excellence Competition of the German Federal and State Governments.

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  • Pressebild-Topologischer-Schnelltest-V1-Bildjoergbandmannpixelwg-1920x1080px

    16 May 2024

    Method Milestone for Quantum Physics: Rapid Test for Topological 2D Materials

    Topological quantum materials are hailed as a cornerstone of future technological advancements. Yet, validating their exceptional qualities has always been a lengthy business. However, researchers at the Cluster of Excellence ct.qmat have now developed an experimental technique that systematically identifies two-dimensional topological materials through a rapid test.

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  • 5-Amacgarbe-Katzeq02-1920x1080

    25 Apr 2024
    12:00 pm

    Kitty Q – A Quantum Adventure: Germany’s First Quantum Physics Escape Room for Children Opens in Dresden

    +++ Cluster of Excellence ct.qmat unveils Germany’s first quantum physics-themed escape room for youngsters in Dresden +++ Kitty Q – A Quantum Adventure at Technische Sammlungen Dresden offers a gamified exploration of quantum physics +++ Michael Kretschmer, Prime Minister of the Free State of Saxony, has agreed to act as patron +++

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  • 0409quasiteilchen

    18 Apr 2024

    Quantum entanglement in quasiparticles: a stealth mode against disorder

    Würzburg physicists of the Cluster of Excellence ct.qmat have discovered that quantum entanglement toughens up quasiparticles against impurity scattering – even when they are subject to strong disorder.

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