According to the website of the UK's New Scientist magazine, scientists at the Los Alamos National Laboratory in the United States have achieved a groundbreaking feat after five years of intensive research and development. They have, for the first time, successfully measured quantum entanglement within solid materials with clarity and reliability, employing neutron scattering technology. This innovative approach involves calculating the quantum Fisher information (QFI) through the analysis of neutron scattering signals. By doing so, it allows for a precise estimation of the minimum number of particles that must be entangled within the material.

Experimental validation has demonstrated that this method is not only effective across a range of magnetic materials but also does not hinge on a flawless theoretical model. This robustness enables it to account for real-world sample defects, a significant advantage in practical applications. The relevant research paper has been presented at the Global Physics Summit, signaling international recognition of this achievement. Looking ahead, future research endeavors will concentrate on the critical region of quantum phase transitions. This focus holds the promise of providing a core tool for the design and development of quantum computing hardware, marking a significant step forward in the field.