Tag Archive for 'Potassium'

The Pauli exclusion principle predicts a forbidden zone along a meridian of the spherical halo of scattered particles, which the experiments indeed unveiled. The dark band in the graphic shows a rule derived from the principle in action. This rule is that indistinguishable fermions cannot scatter out at 90 degrees to the collision axis. Image credit: Niels Kjærgaard.

Pauli Exclusion: Physicists Directly Observe Key Principle of Quantum Mechanics

Jul 11, 2016 by Enrico de Lazaro

An international team of scientists, led by Dr. Niels Kjærgaard from the University of Otago in Dunedin, New Zealand, has used steerable ‘optical tweezers’...

In this artist’s illustration, the sodium-potassium molecule is represented with frozen spheres of ice merged together: the smaller sphere on the left represents a sodium atom, and the larger sphere on the right is a potassium atom. Image credit: Jose-Luis Olivares / MIT.

Physicists Chill Sodium-Potassium Molecules to Near Zero

Jun 12, 2015 by News Staff

A team of physicists led by Prof Martin Zwierlein from Massachusetts Institute of Technology has cooled molecules of sodium-potassium (NaK), each consisting...

Atoms of potassium-40 are cooled during imaging by laser light, allowing thousands of photons to be collected by the new microscope. Image credit: Lawrence Cheuk / MIT.

Physicists Create Microscope for Fermionic Atoms

May 13, 2015 by News Staff

A team of scientists led by Prof Martin Zwierlein of MIT-Harvard Center for Ultracold Atoms and Research Laboratory of Electronics has built a microscope...