How High-Power Lasers Help Simulate the Early Universe
An international group of physicists from the University of California at San Diego and Extreme Light Infrastructure-Nuclear Physics facility in Romania devised an experiment that uses a tightly focused high-power laser with a peak power density of 5×1022 W/cm2 to generate a magnetic field as strong as that of a neutron star (100 million times stronger than Earth's magnetic field).
Source: azooptics.com