Researchers have designed a quantum version of a pendulum clock. It could shed light on timekeeping in the quantum realm ...

Time already behaves strangely in modern physics. It can stretch, slow, and split depending on speed and gravity. Now a new theoretical study pushes that weirdness into even stranger territory. It ...

Time has always seemed like the one thing physics could count on. Matter changes, stars die, particles flicker in and out, ...

Nuclear effect The deformed shape of the ytterbium-173 nucleus (right) makes it possible to excite the clock transition with a relatively low-power laser. The same transition is forbidden (left) if ...

Keeping track of time seems simple. A watch ticks, a pendulum swings, and a calendar flips. But at the quantum level, marking time is far more complicated — and far more expensive than anyone expected ...

(Santa Barbara, Calif.) — In an ongoing effort to bring quantum science out of the tightly controlled lab environment and into the field, researchers from UC Santa Barbara and the University of ...

(University of Birmingham) The quantum world is mind-bogglingly counterintuitive: at the smallest scales, basic physical qualities like position and speed are murky, and time as we know it doesn't ...

The question of how gravity interacts with the quantum world has long perplexed physicists, but a non-quantum theory of space ...