Research

Three HKU Physics PhD students—Min Long, Menghan Song, and Ting-Tung Wang—embarked on a scientific journey at the Abdus Salam International Centre for Theoretical Physics (ICTP) in Trieste, Italy, last December. Below they share their experiences of exchanging knowledge and exploring...

Researchers from the University of Hong Kong, led by Professor Zi Yang Meng, along with international collaborators, have made significant progress toward resolving a contentious puzzle in quantum physics by determining when deconfined quantum critical points represent genuine continuous phase...

The ability to control electron motion with light fields represents a transformative frontier in modern physics, enabling dynamic manipulation of material properties at ultrafast timescales. Yet, the complex interplay between light and excited carriers—via mechanisms such as the AC Stark...

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,...

Revealing the Nature of Dark Matter through Studying Crinkles in Spacetime - Dr Jeremy LIM, Physics (YouTube)Most of the matter in the universe, amounting to a staggering 85% by mass, cannot be observed and consists of particles not accounted for by the Standard Model of Particle Physics (see...

A study led by Dr Jeremy Lim and his Research Assistant, Miss Emily Wong, at the Department of Physics of The University of Hong Kong (HKU), utilizing data from the Hubble Space Telescope, has provided surprising answers to the origin of some globular clusters around giant galaxies at the centers...