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Quantum mechanics - news, articles and features

Physics

How Anthony Leggett pushed the boundaries of quantum physics

After the passing of physicist Anthony Leggett, columnist Karmela Padavic-Callaghan remembers their personal connection with this giant of quantum physics, and explores the legacy of his enduring recipe for testing the edges of the quantum world

Comment

Physics

Temperature gets a new definition using a quantum device

News

Two quantum engineers working on one of the systems at Qilimanjaro?s multimodal quantum data center.

Technology

You can now buy a DIY quantum computer

News

UNITED STATES - NOVEMBER 26: Formally-attired audience sporting 3D glasses during opening night screening of film

Physics

Forget the multiverse. In the pluriverse, we create reality together

Features

Technology

The race to solve the biggest problem in quantum computing

News

Technology

Chemistry may not be the 'killer app' for quantum computers after all

News

Technology

Phantom codes could help quantum computers avoid errors

News

Fractal conceptual illustration of supersymmetry or superstrings. Supersymmetry (SUSY) is a particle physics theory that proposes a type of spacetime symmetry relating two basic classes of elementary particles: bosons, which have an integer-valued 'spin', and fermions, which have a half-integer spin. If supersymmetry is a true symmetry of nature, it would explain many mysterious features of particle physics and would help solve paradoxes such as the cosmological constant problem. There is only indirect evidence for the existence of supersymmetry, primarily in the form of evidence for gauge coupling unification. Direct confirmation would entail production of superpartners at collider experiments, such as at the Large Hadron Collider.

Space

A crisis in cosmology may mean hidden dimensions really exist

Features

Qunnect's Carina rack

Technology

Inside the company selling quantum entanglement

News

Technology

Could a niche 80s technology be the key to better quantum computers?

Superconducting computing circuits were briefly heralded as the future of computing in the 1980s. Columnist Karmela Padavic-Callaghan visits a quantum chip foundry where one company is betting this technology’s second act will revolutionise quantum computers

Comment

Chemistry

The world’s most elusive colour is worth billions – if we can find it

Features

Technology

Breaking encryption with a quantum computer just got 10 times easier

News

Physics

Loophole found that makes quantum cloning possible

News

Physics

Backwards heat shows laws of thermodynamics may need a quantum update

News