NEWS AND VIEWS 27 November 2024 By patterning an ultrathin layered structure with tiny wells, physicists have created and imaged peculiar states known as quantum scars — revealing behaviour that could be used to boost the performance of electronic devices. By Maksym Serbyn1 Dmitry Abanin Dmitry Abanin is in the Department of Physics, Princeton University, Princeton, New Jersey 08544, USA. Maksym Serbyn Maksym Serbyn is at the Institute of Science and Technology Austria, 3400 Klosterneuburg, Aust...