CPA works by using a diffraction grating to split a seed pulse ... the electric field is strong enough to split electron–positron pairs that are spontaneously created by quantum fluctuations ...

Positron, a Reno-based startup founded in 2023, is led by Thomas Sohmers and Mitesh Agrawal, a duo leveraging purpose-built chips to take on Nvidia’s multipurpose dominance. With energy costs ...

These lasers, when focused to nearly their diffraction limit ... such as the creation of electron-positron pairs—a phenomenon previously confined to astrophysical settings like pulsar ...