So, what exactly is quantum theory in chemistry? It’s basically the set of ideas that explain how atoms and molecules behave at a really, really tiny level. Think smaller than you can even imagine.

Rydberg molecules and atoms comprise a captivating branch of modern quantum chemistry and atomic physics, where atoms in highly excited electronic states interact to form unusually long-range ...

Called a landmark discovery, scientists create a molecule with an unprecedented electronic pattern that revolutionizes ...

When a molecule absorbs light, it undergoes a whirlwind of quantum-mechanical transformations. Electrons jump between energy levels, atoms vibrate, and chemical bonds shift—all within millionths of a ...