John Martinis has already revolutionised quantum computing twice. Now, he is working on another radical rethink of the technology that could deliver machines with unrivalled capabilities ...

In the late 1970s, legendary physicist John Wheeler proposed a radical question: Exactly when does the universe notice that we're paying attention to a quantum experiment? And does it really matter?

A century-old thought experiment on wave–particle duality is brought into the laboratory using a single trapped atom ...

Concerns that quantum computers may start easily hacking into previously secure communications has motivated researchers to ...

Schrödinger’s cat just got a little bit fatter. Physicists have created the largest ever ‘superposition’ — a quantum state in ...

Quantum computers struggle because their qubits are incredibly easy to disrupt, especially during calculations. A new ...

The new research demonstrates for the first time that the wave nature of matter persists even at large scales, using massive ...

It has never been straightforward to probe the secrets of quantum systems. Quantum systems are powerful but extremely hard to measure. The traditional methods require astronomical resources, making ...

Some researchers believe consciousness is a byproduct of the constantly firing web of neurons in our heads. However, others believe something more theoretical must be involved to explain our complex ...

Metal clusters made of thousands of atoms showed quantum interference, offering new insight into how large objects follow quantum rules.