Imaginary time is a wonky concept for our time-bound brains, but in quantum theory and mathematics, it’s a useful tool for ...

However, quantum theory says that time isn’t bendable in any way. It does not change. Many physicists believe that the definition of time across both theories should be consistent.

Physicists are challenging long-held beliefs about time, suggesting it may not be a fundamental aspect of reality but rather ...

It's about time . In quantum mechanics, our best theory of the microscopic world, time is a fixed phenomenon — an inexorable, unidirectional flow from the past to the present.

A new, testable theory proposing three-dimensional time as the "primary fabric of everything" could help unify quantum ...

It’s surprising that, even though quantum theory is now officially over 100 years old, so few people truly understand it. That’s not a failing of the public—it’s just that quantum ...

All the world’s a stage and the stage itself is space-time where all the laws of physics are merely players. But maybe space-time is not the fundamental aspect that it is believed to be.

There’s more to quantum gravity than gravitons, which would represent just the mildest ripples in space-time. A full theory would need to go beyond ripples to describe what happens when stars ...

So darkly complex, so fabulously remote from the familiar things of human existence is science's probing into the fundamental secretae of the universe—of light, electricity, gravity, ...

Deep underground: the Gran Sasso low radioactivity lab where the experiment was done. (Courtesy: Massimiliano De Deo, LNGS-INFN) A controversial theory put forward by physicist Roger Penrose and ...

Physicists have struggled to understand the nature of time since the field began. But a new theoretical study suggests time could be an illusion woven at the quantum level.