Atomic and molecular

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Artist's impression of a plasma confined in the RT-1 facility. The plasma appears as a glowing purple cloud within a toroidal chamber surrounded by magnetic field lines and containing red particles (representing high-temperature electrons) that are emitting white lines (representing the chorus waves)

Space weather phenomenon observed in the lab for the first time

New attosecond X-ray spectroscopy technique ‘freezes’ atomic nuclei in place

Removing "noise" from atomic motion enables scientists to observe electron movement in real time, leading to new interpretations of previous results

Space-borne atoms herald new tests of Einstein’s equivalence principle

Measuring the free-fall rate of different type of atoms in space could unveil hidden mechanisms of gravity

Matter–antimatter gas of positronium is laser cooled

Technique could give spectroscopic studies of antimatter a boost

Research headlines

Ultracold four-atom molecules are bound by electric dipole moments

Image showing hot pink and orange arrows representing the flow of heat through a grid of atom-like spheres

Physicists take the temperature of second sound

Physicists observe false vacuum decay in a ferromagnetic superfluid

Machine learning takes hassle out of cold-atom experiments

Reinforcement learning can make cooling apparatus more robust

Entangled molecules make a novel qubit platform

Two independent groups report a new tool for quantum science

Scientists propose super-bright light source powered by quasiparticles

A new light source concept based on plasma accelerators could be harnessed for a variety of applications, including non-destructive imaging and computer-chip manufacturing

Organic molecule from trees excels at seeding clouds, CERN study reveals

Sesquiterpene creates cloud-forming particles

No-heat quantum engine makes its debut

Researchers demonstrate a prototype engine powered by the quantum statistics of bosons and fermions

Antimatter does not fall up, CERN experiment reveals

ALPHA-g is first to observe antihydrogen in freefall

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Explore more in atomic and molecular physics

Magnetic reconnection in space and fusion plasmas: challenges at large and small scales

Join the audience for a live webinar on 6 February 2024 sponsored by IOP Publishing's journal, Plasma Physics and Controlled Fusion

Neutral-atom quantum computers are having a moment

Three new studies show record low error rates and a new error erasure strategy for two-qubit quantum gates

‘Alice rings’ spotted in a Bose–Einstein condensate

Laboratory experiment could shed light on cosmological questions

Cold atoms used to create reliable pressure gauge for ultrahigh vacuum

Device could be used in particle accelerators and gravitational-wave detectors

Photo of Zhendong Zhang and Cheng Chin in their lab at Chicago. They're looking through a tangle of wires at an optical bench full of components with a vacuum chamber at its heart

Quantum superchemistry emerges in the laboratory

Chemical reactions speed up when reactants are in the same quantum state, confirming theoretical predictions

Photo of the vacuum chamber and other experimental apparatus used to measure the eEDM

Physicists measure the electron electric dipole moment to unprecedented precision

Measurement calls into question theories beyond the Standard Model

Artist’s depiction of two spatially separated entangled rubidium atom clouds on top of a micro-fabricated gold atom chip. The atom clouds are shown as blue dots and sit in the middle of gold wiring on the chip

Einstein–Podolsky–Rosen paradox gets a 1000-atom test

New experiment brings EPR thought experiment to reality for the first time in massive, many-particle systems

Fractional quantum Hall state appears in ultracold atoms

Strongly interacting Laughlin state had previously only been observed in condensed-matter systems and in photons

Building blocks of DNA could survive in Venus’ corrosive clouds, say astronomers

All five nucleic acids remain stable in concentrated sulphuric acid, and could form the basis for an alternative way of encoding life

Interactions between ultracold molecules controlled by physicists

Discoveries opens new possibilities for controlling chemical reactions

Diagram of alpha-ruthenium trichloride. The ruthenium atoms are large and blue, and the smaller, more numerous chlorine atoms are green. They're arranged in a lattice with a hexagonal repeating pattern

Quantum processors still struggle to simulate complex molecules

Latest results show that classical computers retain an edge when simulating quantum chemistry problems – at least for now

Quantum technologies benefit from the bottom-up approach of synthetic chemistry

This podcast features a chemist who creates molecular qubits

Photo of muqarnas - tiny, arched cavities nested together like a honeycomb - at the Alhambra, showing the purple discolouration on the surface.

Solving the mystery of the Alhambra’s purple gold

Gold nanoparticles are forming in ceiling decorations at this masterpiece of Islamic architecture

A photo of the optical components used to trap and manipulate atoms in the JILA neutral-atom qubit experiment. The photo is dark and bathed in green and blue light from the lasers used in the experiment.

New neutral-atom qubit offers advantages for quantum computing

First demonstrations of ytterbium atoms in a quantum processor could lead to a new platform for quantum computation

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