Watch a lecture by Klaus Mølmer from the "Quantum Trajectories" program at the International Centre for Theoretical Sciences. This 1 hour 47 minute talk is part of Day 6 (session 1) of the program held on January 27, 2025. The program brings together researchers exploring quantum trajectories, quantum control, measurement-induced phase transitions, and quantum information and computation. Organized by Michel Bauer, Cedric Bernardin, Raphael Chetrite, and Abhishek Dhar, this lecture contributes to the program's goal of addressing central theoretical questions in quantum physics and fostering collaboration between theoretical, experimental, and mathematical researchers in the field of quantum mechanics.