What is quantum physics? Put simply, it’s the physics that explains how everything works: the best description we have of the nature of the particles that make up matter and the forces with ...

Quantum mechanics is the best tool we have to understand how the universe works on its smallest scales. Everything we can see around us, from far-off galaxies to our own bodies, is made up of ...

Aug 14, 2025 · For a century, quantum theory has passed every experimental test, but physicists can’t agree on how to use it to paint a picture of our reality – or even whether that is possible

Apr 15, 2025 · Explore the key moments in the history of quantum theory, from the early ideas of Albert Einstein and Werner Heisenberg to the discovery of phenomena like superposition and entanglement …

Nov 24, 2025 · Quantum theory fails to explain how the reality we experience emerges from the world of particles. A new take on quantum cause and effect could bridge the gap

Apr 16, 2025 · Quantum theory started with a bout of hay fever, and went on to transform our view of the universe – but its legacy isn't complete

Oct 11, 2023 · Quantum mechanics In quantum theory, the lowest possible energy state for space-time – the stage on which everything there is plays out, including our possible multiverse – is called a …

Quantum field theory marries the ideas of other quantum theories to depict all particles as “excitations” that arise in underlying fields. The British physicist Paul Dirac started the ball ...

Five quantum theorists discuss the greatest achievements of quantum mechanics and look forward a future in which experiments might finally answer some of the theory's biggest mysteries

Jul 18, 2025 · Instead of the big bang, some physicists have suggested that our universe may have come from a big bounce following another universe contracting – but quantum theory could rule this out