Since it was first demonstrated in the 1960s, spontaneous parametric down-conversion (SPDC) has been at the center of many quantum optics experiments that test the fundamental laws of physics in ...

Non-perturbative interactions (i.e., interactions too strong to be described by so-called perturbation theory) between light and matter have been the topic of numerous research studies. Yet the role ...

Scientists have, for the first time, experimentally proven that angular momentum is conserved even when a single photon splits into two, pushing quantum physics to its most fundamental limits. Using ...

Convention has it that quantum mechanics and thermodynamics cannot be true simultaneously - so say scientists at the University of Twente ("UT"), The Netherlands. But now, in a new journal paper, UT ...

Experiments at Lawrence Livermore National Laboratory's National Ignition Facility (NIF) require breathtaking precision. Each of the 192 lasers is focused to a width of a few millimeters to enter a ...

The long-awaited first results from the Muon g-2 experiment at Fermi National Accelerator Laboratory show fundamental particles called muons behaving in a way that is not predicted by scientists’ best ...