#quantum hall effect

Introduction The Quantum Hall Effect is a quantum-mechanical version of the classical Hall effect. The Hall effect involves the generation of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current. The Quantum Hall Effect, however, is observed at extremely low temperatures and…

Researchers Demonstrate Three-Dimensional Quantum Hall Effect for the First Time

The quantum Hall effect (QHE), which was previously known for two-dimensional (2D) systems, was predicted to be possible for three-dimensional (3D) systems by Bertrand Halperin in 1987, but the theory was not proven until recently by researchers from the Singapore University of Technology and Design (SUTD) and their research collaborators from around the globe.

The Hall effect, a fundamental…

Experiments Show The Effects of a Fourth Spatial Dimension

Wow.

By David Nield

We're used to dealing with three physical dimensions and one extra dimension of time as we move through the Universe, but two teams of scientists have shown that a fourth spatial dimension could reach beyond the limits of up and down, left and right, and forwards and backwards.

As you might expect given this is bending the laws of physics, the experiments involved are partly theoretical and very complex, and touch on our old friend quantum mechanics.