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Schrödinger cat state sets new size record

Clusters containing thousands of metal atoms obey the laws of quantum mechanics, say physicists

Photo of the vacuum chamber used in the experiment at the University of Vienna, bathed in a wash of blue light

Einstein’s recoiling slit experiment realized at the quantum limit

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

Laboratory set-up of Einstein’s thought experiment

Modelling wavefunction collapse as a continuous flow yields insights on the nature of measurement

Quantum state diffusion framework makes it possible to characterize quantum measurement in terms of entropy production

Schematic diagram showing a spinning coin. In the "instantaneous wavefunction collapse" picture, the coin is instantly either heads or tails. In the quantum state diffusion gradual wavefunction collapse, the coin is drawn as wobbling between heads and tails as it falls, before finally settling on heads.

Quantum-scale thermodynamics offers a tighter definition of entropy

New formulation sheds light on the three-level maser

Illustration of the application of the new thermodynamics

Playing games by the quantum rulebook expends less energy

New form of quantum advantage emerges from study of game theory and quantum information

Classical gravity may entangle matter, new study claims

Surprising result could guide searches for quantum gravity

Precision sensing experiment manipulates Heisenberg’s uncertainty principle

Though the principle is not violated, a new way of fudging its restrictions could lead to improvements in ultra-precise sensing, say physicists

Photo of Christophe Valahu in the Quantum Control Laboratory at the University of Sydney’s Nano Institute. He's dressed casually in jeans and a black sweater with the sleeves rolled up. His hands are in his pockets and he's smiling at the camera. Behind him is an optical bench full of equipment.

Bayes’ rule goes quantum

New work could help improve quantum machine learning and quantum error correction

Illustration created using multiple images of Thomas Bayes

Physicists extend the wave nature of large objects

Increasing the wave-like behaviour of nanoparticles brings fundamental quantum tests one step closer

Illustration of strong delocalization in a nanoparticle

Quantum gas keeps its cool

New measurements on Bose–Einstein condensate could help us better understand how objects transition from being quantum and ordered to classical and chaotic

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Quantum | Forum Quantum many-body systems out of equilibrium: Relaxation, thermalization and ergodicity breaking (QMBSOE26) 31 August — 4 September 2026 | Dresden, Germany

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