LightDriven

Collective state computing, leveraging the Ising problem and light-based techniques, offers a novel approach to overcome traditional computing limitations. Credit: SciTechDaily.comResearchers develop a computer from an array of VCSELs with optical feedback.In our data-driven era, solving complex problems efficiently is crucial. However, traditional computers often struggle with this task when dealing with a large number of interacting variables, leading to inefficiencies such as the von Neumann bottleneck. A new type of…

Excitons in the topological insulator bismuthene. Credit: Jörg BandmannA breakthrough in quantum research – the first detection of excitons (electrically neutral quasiparticles) in a topological insulator has been achieved by an international team of scientists collaborating within the Würzburg-Dresden Cluster of Excellence ct.qmat. This discovery paves the way for a new generation of light-driven computer chips and quantum technologies. It was enabled thanks to smart material design in Würzburg, the birthplace of…

Artistic representation of a microdrone with two active light-driven nanomotors between red blood cells. Credit: Thorsten FeichtnerA hand-held laser pointer produces no noticeable recoil forces when it is “fired” — even though it emits a directed stream of light particles. The reason for this is simply because of its relatively enormous mass compared to the very tiny recoil impulses that the light particles cause when they leave the laser pointer.However, it has long been clear that optical recoil forces can indeed have a…