Researchers at Hiroshima University have developed a realistic, highly sensitive method to detect the Unruh effect—a long-predicted phenomenon at the crossroads of relativity and quantum theory. Their ...

You could be forgiven for thinking initially that the new German film The Universal Theory, with its epic Alpine vastness, sweeping historical millieu, and heady quantum mechanics context, is one of ...

Trying to solve quantum gravity is frustrating. We have made tremendous progress in quantum theory, but it seems that every time we find a new quantum technique, there's a reason it doesn't quite work ...

Modern physics theories highlight the key role of horizons—boundaries beyond which information cannot reach an observer—in a ...