Yi Zeng

Stories

Physicists create a strange new quantum state called a fractional Fermi sea

Lead author of the fractional Fermi sea paper

Physicists at the University of Innsbruck created a new quantum state called a fractional Fermi sea: ultracold cesium atoms locked into a highly excited but orderly configuration. The state forms when researchers cycle the atoms between forceful repulsion and attraction, pushing the gas far from equilibrium without letting it fall into disorder.

Updated Oct 19