The Global Physics Summit (GPS) is being held in Anaheim by the American Physical Society (APS). About 14,000 physicists are expected to attend the event.
The GPS combines the APS's traditional March and April meetings focusing on condensed-matter, particle, and nuclear physics.
The event is an opportunity for the global community of physicists to unite and address political and funding challenges faced by physicists in the US.
This year, the summit will also highlight quantum mechanics, with the 'Quantum Playground' offering interactive experiences, demonstrations, and more.