Ultrafast light pulses are currently subject to a flourishing field of research activities. They offer, for instance, the fascinating opportunity to study dynamic processes at very short timescales and promise the future multiplication of bit rates in optical communication systems. Over the last years, a highly sophisticated toolbox has been developed to realise ever shorter pulses, with specifically engineered temporal and spectral properties. On the other hand, making use of the quantum features of light has paved the way towards novel quantum communication and information applications.
In our group, we are interested in combining these two highly exciting fields of research and push forward into the upcoming field of ultrafast quantum optics. Although the theoretical foundations for this have already been laid by Roy Glauber in 1963 , until now the highly complex structure of ultrafast quantum pulses is still not fully understood.
Our goal is to achieve full control over this structure, theoretically as well as experimentally, to be able to generate any number of ultrafast quantum pulses with any temporal profile. With this competence, we will then be working towards new possibilities of information multiplexing. Using the generated quantum pulses as information carriers, novel quantum communication and information schemes come into reach, which could outrun existing schemes in terms of qubit rates and overall performance.