Search results for dirac

Nanophysics Apr 1, 2025

Scientists merge two 'impossible' materials into new artificial structure

An international team led by Rutgers University-New Brunswick researchers has merged two lab-synthesized materials into a synthetic quantum structure once thought impossible to exist and produced an exotic structure expected ...

General Physics Mar 27, 2025

Dirac's Plate Trick, the Hairy Ball Theorem and more: Research probes physics of irregular objects on inclined planes

How gravity causes a perfectly spherical ball to roll down an inclined plane is part of the elementary school physics canon. But the world is messier than a textbook.

General Physics Mar 5, 2025

Distinguishing classical from quantum gravity through measurable stochastic fluctuations

In a new Physical Review Letters study, researchers propose an experimental approach that could finally determine whether gravity is fundamentally classical or quantum in nature.

General Physics Feb 19, 2025

How topology drives complexity in brain, climate and AI

A study led by Professor Ginestra Bianconi from Queen Mary University of London, in collaboration with international researchers, has unveiled a transformative framework for understanding complex systems.

Quantum Physics Jan 23, 2025

Physicists pioneer entanglement microscopy algorithm for quantum many-body systems

Quantum entanglement—a phenomenon where particles are mysteriously linked no matter how far apart they are—presents a long-standing challenge in the physical world, particularly in understanding its behavior within complex ...

Condensed Matter Jan 21, 2025

Illuminating an asymmetric gap in a topological antiferromagnet

Topological insulators (TIs) are among the hottest topics in condensed matter physics today. They're a bit strange: Their surfaces conduct electricity, yet their interiors do not, instead acting as insulators. Physicists ...

Condensed Matter Jan 16, 2025

Relativistic spin-orbit coupling may lead to unconventional superconductivity type

Observing the effects of special relativity doesn't necessarily require objects moving at a significant fraction of the speed of light. In fact, length contraction in special relativity explains how electromagnets work. A ...

Quantum Physics Dec 31, 2024

A new calculation of the electron's self-energy improves determination of fundamental constants

When quantum electrodynamics, the quantum field theory of electrons and photons, was being developed after World War II, one of the major challenges for theorists was calculating a value for the Lamb shift, the energy of ...

Quantum Physics Dec 12, 2024

Physicists uncover strong light-matter interactions in quantum spin liquids

Physicists have long theorized the existence of a unique state of matter known as a quantum spin liquid. In this state, magnetic particles do not settle into an orderly pattern, even at absolute zero temperature. Instead, ...

General Physics Dec 10, 2024

Particle that only has mass when moving in one direction observed for first time

For the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when moving one direction but has mass in the other direction. The quasiparticle, called a semi-Dirac ...

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