Liverpool research recognized in Physics World’s Top 10 Breakthroughs of 2024

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Photograph of the AEgIS trap.

Physics World has named its Top 10 Breakthroughs of 2024, with the AEgIS collaboration at CERN, featuring our very own QUASAR Group, honoured for achieving the first-ever laser cooling of positronium. This milestone advances antimatter research and enhances precision in exploring fundamental physics.

Positronium, a unique atom made of an electron and positron, might be a key to understanding the universe’s matter-antimatter asymmetry. Laser cooling enables unprecedented precision in these studies. Dr. Benjamin Rienäcker, AEgIS Physics Coordinator and QUASAR Group member, remarked: "This breakthrough enhances our ability to study antimatter and address profound questions about the universe's origins."

Professor Carsten P Welsch, Liverpool team leader in AEgIS, proudly added: "This achievement showcases the power of collaboration and innovation. Congratulations to the entire collaboration!"

For more on Physics World’s Top 10 Breakthroughs, visit Physics World. Learn about the positronium cooling breakthrough here.