Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

Quantum theory – our best understanding of the world at the smallest level – is famously weird and notoriously confusing. It’s a theory that seems to say particles can be in two places at once, or ...

Physicists have coaxed a cloud of quantum spins into doing something that should not happen in ordinary materials: they light ...

Researchers at Google have used their Willow quantum computer to demonstrate that "quantum contextuality" may be a crucial ...

Although the basic idea of quantum physics dates back to the earliest years of the twentieth century, it wasn’t until 1925, on the German island of Heligoland, that Werner Heisenberg had the ...

Abstract The theory of quantum states over time extends the density operator formalism into the temporal domain, providing a unified treatment of ...

Quantum computers, systems that process information leveraging quantum mechanical effects, could soon outperform classical computers on some complex computational problems. These computers rely on ...

Quantum information theory is a field of study that examines how quantum technologies store and process information. Over the ...

A South Korean physicist has proposed a theoretical framework that could support the unification of quantum mechanics and the ...

An experiment with ultracold atoms reveals that a strongly driven quantum system doesn’t always heat up as expected. In daily ...