Physicists have found conclusive evidence for superfluidity - flow without resistance - in an ultracold Fermi gas. Although indirect evidence for superfluidity in Fermi gases has been seen before, low ...

Cooling atoms to ultra-low temperatures reveals the striking differences between fermions and bosons at the quantum level. When the 2001 Nobel Prize for Physics was awarded to Eric Cornell and Carl ...

Ferromagnetism is a manifestation of strong repulsive interactions between itinerant fermions in condensed matter. Whether short-ranged repulsion alone is sufficient to stabilize ferromagnetic ...

We report the observation of pairing in a gas of atomic fermions with unequal numbers of two components. Beyond a critical polarization, the gas separates into a phase that is consistent with a ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Giant bubbles of gas that erupted from the core of the Milky Way galaxy millions of years ago are ...

Can a gas of spin-up and spin-down fermions become ferromagnetic because of repulsive interactions? We addressed this question, for which there is not yet a definitive theoretical answer, in an ...

Mysterious cosmic bubbles are being seen in a new light. For the first time, scientists have observed visible light from the Fermi bubbles, enormous blobs of gas that sandwich the plane of the Milky ...