Fragile topology: Two new studies explain the strange electron flow in future materials

Electrons race along the surface of certain unusual crystalline materials, except that sometimes they don’t. Two new studies from Princeton researchers and their collaborators explain the source of the surprising behavior and chart a course for restoring conductivity in these remarkable crystals, prized for their potential use in future technologies including quantum computers. The studies … Read more

Breakthrough made on the next big step to building the world’s most powerful particle accelerator

For the first time scientists have observed muon ionization cooling – a major step in being able to create the world’s most powerful particle accelerator. This new muon accelerator will give us a better understanding of the fundamental constituents of matter. Since the 1930s, accelerators have been used to make ever more energetic proton, electron, … Read more

IoP physicists cool an atom-ion mixture to the quantum regime

Over the past years, physicists have developed techniques to create extremely cold atoms and ions. These ultra-cold particles have many uses; for example, they can be used as building blocks for quantum computers and highly precise clocks. Ideally, for such applications, one would also have mixtures of very cold atoms and ions at one’s disposal, … Read more

Detection of very high frequency magnetic resonance could revolutionize electronics

A team of physicists has discovered an electrical detection method for terahertz electromagnetic waves, which are extremely difficult to detect. The discovery could help miniaturize the detection equipment on microchips and enhance sensitivity. Terahertz is a unit of electromagnetic wave frequency: One gigahertz equals 1 billion hertz; 1 terahertz equals 1,000 gigahertz. The higher the … Read more

QuTech realises ‘MRI on the atomic scale’

Researchers at QuTech, a collaboration of TU Delft and TNO, have developed a new magnetic quantum sensing technology that can image samples with atomic-scale resolution. It opens the door towards imaging individual molecules, like proteins and other complex systems, atom by atom. The team reports on their results in Nature. Magnetic resonance Magnetic Resonance Imaging (MRI) and … Read more

A new view for glasses

Researchers at The University of Tokyo introduced a new physical model that predicts the dynamics of glassy materials based solely on their local degree of atomic structural order. Using computer simulations, they showed how this theory greatly improves our understanding of how glassy liquids become more viscous on cooling. This work has many potential applications … Read more

Molecular eraser enables better data storage and computers for AI

Scientists have added a crucial tool to the atomic-scale manufacturing toolkit with major implications for today’s data driven–carbon intensive–world, according to new research from the University of Alberta in Canada. “Computers today are contributing one gigatonne of carbon emissions to the atmosphere, and we can eliminate that by enhancing the most power-hungry parts of conventional … Read more