The center of complex quantum systems here at Oros University is a combination of theorists and experimentalists developing complex new quantum systems that explain nature in new and deeper ways. We have this direct interaction. There is a feedback from the theory into the experiment, but also back from the experiment to the theory. That's really exciting. What drives our daily work and our progress forward. So we develop ideas here on the blackboard and we can directly talk to the experimentalists and then we can actually try these things after a while in the experiment and from there we develop new ideas. The nice thing is really that the interaction is between our young scientists. So there we have basically really great dynamics and great enthusiasm of the young people. It was always a dream of mine to be part of Oros Quantum Group and what is interesting me about the CCQ Group is its scientific environment. You can tell that this place is really alive. You can see all over that people are talking about science here. The major strength of CCQ is actually the close collaboration between theorist and experimentalists because this is a very stimulating environment for us and it's very vibrant and we get a lot of ideas from experimentalists. What can we do? What is most important problems to tackle? The first quantum revolution really told us about quantum mechanics and then years after we learned to control larger groups of atoms. That enabled for example the laser or the atomic clock. However in the last 25 years we were able to control individual atoms and that new ability really enables the second quantum revolution. At the moment we are living at some really exciting times so the major goal of Oros and it's now to combine these capabilities and create new quantum systems that are where you merge, matter, atoms, even single atoms on the one hand and photons on the other and create new single quantum systems that we can use for applications such as precise clocks and perhaps quantum computing with light.