The Topical Lecture Weeks are given by outstanding guest scientists and connect the fundamental knowledge presented in the regular lecture courses to the forefront of research where the doctoral research takes place. There are two lecture weeks per year, one with an emphasis on theoretical physics and one on experimental physics. The lectures will be accessible to both experimental and theoretical doctoral researchers and will also be open to Master students of the CRC. During the lecture weeks, the doctoral researchers will have ample opportunities to interact with the guest lecturers and discuss their research topics with them. Moreover, the doctoral researchers are invited to give short seminars on their own research helping to get them in contact with the lecturer.