Researchers at the University of Hong Kong have developed a pioneering method to map quantum entanglement, a phenomenon where particles remain interconnected regardless of distance. This innovation, termed entanglement microscopy, provides a novel way to study the intricate behaviours of quantum...

The probing of coherent lattice vibrations in solids has been conventionally carried out using time-resolved transient spectroscopy where only the relative oscillation amplitude can be obtained. Using time-resolved X-ray techniques, absolute electron-phonon coupling strength could be extracted....

The Mermin-Wagner theorem states that spontaneous continuous symmetry breaking is prohibited in systems with short-range interactions at spatial dimension D ≤ 2. For long-range interactions with a power-law form (1/r^a), the theorem further forbids ferromagnetic or...

A team of international researchers led by The University of Hong Kong (HKU) and The University of Science and Technology (HKUST) has made a significant discovery in the field of quantum materials, uncovering the controllable nonlinear Hall effect in twisted bilayer graphene. The findings,...