Imagine a clock that doesn’t have electricity, but its hands and gears spin on their own for all eternity. In a new study, physicists at the University of Colorado Boulder have used liquid crystals, the same materials that are in your phone display, to create such a clock—or, at least, as close as humans can […]
When you look at a crystal—say, a piece of salt or a sheet of graphene—its atoms are not randomly scattered. They form an orderly grid, like tiles on a floor. Because the atoms are arranged in this repeating way, electrons moving through the crystal don’t behave as if they’re in free space. Instead, their motion […]
Condensed matter • DIPC Advanced materials • Materials • Quantum physics
Imagine a material where electrons glide through without any resistance, moving like a perfectly synchronized dance troupe. This phenomenon, known as superconductivity, allows electricity to flow with zero energy loss, holding immense promise for everything from ultra-efficient power lines to advanced quantum computers. A a team of researchers dives into this fascinating world, focusing on […]
“God does not play dice.” This famous remark by Albert Einstein critiqued the probabilistic nature of quantum mechanics. Paradoxically, his theory of relativity has become an essential tool for understanding the behaviour of electrons, the primary subjects of quantum mechanics. Electrons are so minuscule that their behaviour must be analysed through quantum mechanics, yet they […]
Graphene, a single layer of carbon atoms arranged in a honeycomb pattern, is renowned for its ability to conduct electricity with ease. When two graphene sheets are stacked and twisted at a “magic angle” of about one degree, something remarkable happens: the electrons slow down dramatically, creating “flat bands” where they interact strongly. A new […]
When Georg Ohm wired up pieces of copper in 1827, he struck a rule so robust that it still underpins every phone and supercomputer on Earth: double the current, double the voltage. Simple, linear, universal—or so we thought. Over the past decade physicists have discovered that this bedrock principle crumbles the moment a crystal loses […]
Chemistry • Condensed matter • DIPC Computer Science • DIPC Electronic Properties • Quantum chemistry
Quantum chemistry is a field that dives into the behaviour of atoms and molecules at their most fundamental level, using the principles of quantum mechanics to understand how electrons interact within these systems. For researchers, one of the biggest challenges is studying systems where electrons are strongly correlated—meaning their movements are highly interdependent, like dancers […]
Quantum simulation, a concept that once seemed like science fiction, is now revolutionizing the way physicists study the quantum world. The idea, famously suggested by Richard Feynman in the 1980s, is to use a controllable quantum system to mimic the behaviour of another system that is too complex to study directly. Over time, researchers have […]
Imagine a world where light, instead of merely bouncing off surfaces or passing through transparent materials, is controlled in a completely new and unexpected way. Scientists have recently taken a major step in this direction by discovering what is called a “photonic axion insulator.” While this term might sound complicated, the underlying idea is both […]
A team of researchers has experimentally demonstrated a quantum tornado for the first time by refining an established method. In the quantum semimetal tantalum arsenide (TaAs), electrons in momentum space behave like a swirling vortex. This quantum phenomenon was first predicted eight years ago. Scientists have long known that electrons can form vortices in quantum […]