On Friday 10 July, we were happy to welcome Ludger Wirtz and Atharv Maheshwari to our institute. Ludger, who was the supervisor of Christoph Stampfer’s diploma thesis, gave an excellent seminar on the 'Symmetry of Excitons'. The visit also gave us the opportunity to have a number of interesting scientific discussions throughout the day.

Many thanks to Ludger and Atharv for visiting us and for the stimulating exchange.