Physicists take on the big questions to discover how the universe works—from the smallest particles to the largest galaxies. Physicists experiment, observe, and analyze phenomena using mathematical ...

Strong laser fields were supposed to be the cleanest way to watch electrons move, yet the latest experiments show that the vacuum itself can quietly reshape what those fields do. By flooding matter ...

In a new study published in Nature Physics, researchers have demonstrated that quantum light, particularly bright squeezed vacuum (BSV), can drive strong-field photoemission at metal needle tips.