Spin states Physicists could soon be putting the Standard Model to the test by observing transitions in a one-positron ...

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 have directly observed a long-predicted quantum effect of gravity, putting one of Einstein’s foundational ideas to a striking new test. Using ultracold atoms, researchers split an atom’s ...