Tweezers made of light could illuminate the quantum twin paradox

A single ytterbium atom, cooled down to extreme temperatures and manipulated with laser beams, could reveal how gravity affects quantum objects

​A single ytterbium atom, cooled down to extreme temperatures and manipulated with laser beams, could reveal how gravity affects quantum objects A single ytterbium atom, cooled down to extreme temperatures and manipulated with laser beams, could reveal how gravity affects quantum objects