A new experiment using ultracold rubidium atoms found that a quantum object in free fall behaves consistently with Einstein's ...

For decades, physicists have worked to prove the strange predictions of quantum mechanics with real experiments. As quantum ...

A team of physicists has shown that pairs of helium atoms, chilled to near absolute zero and launched into each other, can behave as though each atom travels two separate paths at the same time. The ...

Physicists may have just cracked open a hidden side of the quantum world. For decades, every known particle was thought to belong to one of two categories — bosons or fermions — but researchers have ...