Add Yahoo as a preferred source to see more of our stories on Google. A 3D rendering of a pair of hands holding glowing bands of energy like a cat’s cradle. One of the bands fold inwards, reminiscent ...

Physicists at Columbia University in the US say they may have found evidence for a phenomenon in which a superfluid suddenly stops flowing inside a solid-state material. If confirmed, the finding – ...

Artistic illustration of a topological exciton insulator: Excitons condense in the bulk of the material, forming a collective insulating phase, while topologically protected edge modes propagate ...

Topological materials are a class of materials that exhibit unique electronic properties at their boundary (surface in 3D materials; edge in 2D materials) that are robust against imperfections or ...

Physicists have experimentally detected how so-called Hubbard excitons form in real-time. In art, the negative space in a painting can be just as important as the painting itself. Something similar is ...

Artistic illustration of a topological exciton insulator: Excitons condense in the bulk of the material, forming a collective insulating phase, while topologically protected edge modes propagate ...

We show that in the excitonic insulator phase of time-reversal (TR) invariant Weyl semimetals (WSMs), the phase of the exciton condensate couples to the electromagnetic (EM) field as a massive ...

Light can do more than illuminate a material. In some cases, it can temporarily change how electrons move through it. That possibility sits at the heart of Floquet engineering, a young area of ...