The quantum many body problem has been at the heart of much of theoretical and experimental physics over the past few decades ...

In the strange world of quantum mechanics, objects can exist in several states at once. This concept, called superposition, is one of the most puzzling features of quantum theory. A particle, for ...

The measurement problem in quantum mechanics looks at how an experimental outcome changes, simply by observing it.

A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.

Two experiments with different quantum computers showcase their growing ability to simulate materials and quantum matter that ...

Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World ...

Forget the Turing test. In Sam Altman's world, the only verdict that matters comes from physicist David Deutsch.

One notable example is the $34 million secured by British quantum algorithms specialist Phasecraft from a group of investors, including an entity linked to Danish pharmaceutical ...

A radical new theory regarding the origin of the universe suggests that gravitational waves, tiny ripples in spacetime first ...