Institute for Complex Quantum Systems is one of the three theory Institutes at the Department of Physics in Ulm University.

At this Institute, research focuses on modern quantum physics, building on foundational work from 100 years ago that originally aimed to understand individual atoms and small molecules. Today, the institute studies much larger systems, such as artificial atoms on chips that are thousands of times bigger than natural atoms but exhibit similar properties. These artificial atoms are central to emerging technologies like quantum computing, which could revolutionize information processing within the next decade. The shift from studying isolated particles to investigating collective behaviors in solid-state systems highlights how quantum effects now manifest at macroscopic scales. The institute conducts a wide range of theoretical and experimental research in close international collaboration with partners across Europe and the world. 

The institute has a diverse community, with members from all around the globe.

Here is a testimony from one of our postdoctoral researchers, who shares insights into his work on DNA as a complex system. His research focuses on how quantum mechanics may explain epigenetic effects—environmental influences that impact how DNA expresses itself within cells, affecting protein production and metabolism. The goal is to determine whether quantum mechanics can shed light on how the environment interacts with DNA. One promising area of study is "double proton tunneling," where protons move between adjacent DNA base pairs through quantum tunneling. If found to be significant, this phenomenon could underscore the relevance of quantum mechanics in understanding epigenetic behavior. _{Video is in English language}