Spooky Quantum Entanglement Found Inside Protons

Scientists have used high-energy particle collisions to discover, for the first time, quantum entanglement within individual protons. This 'spooky action at a distance' occurs even at the incredibly small scale of a proton, challenging our understanding of its internal structure. The team employed a 2017-developed technique analyzing the 'messiness' of particle sprays after collisions to detect entanglement. Results showed quarks and gluons are maximally entangled, offering insights into the strong interactions within protons and the building blocks of atomic nuclei. This discovery could significantly impact future research in nuclear physics, such as investigating how the nuclear environment affects entanglement within protons.