Atomic and molecular processes in external fields is a research area that investigates how atoms and molecules respond to applied electromagnetic, static electric, magnetic, or intense laser fields, with emphasis on modifications of their electronic structure, energy levels, transition probabilities, and reaction dynamics. It encompasses phenomena such as Stark and Zeeman effects, field-induced ionization and dissociation, alignment and orientation of molecules, and coherence and control of quantum states. The field integrates quantum mechanics, scattering theory, and time-dependent many-body methods to model interactions and is central to high-field physics, ultrafast spectroscopy, quantum control, and precision measurements in atomic, molecular, and optical science.
For the first time, a team of US researchers has used sensors containing highly excited Rydberg atoms to detect signals from an ordinary handheld radio. Through a careful approach to demodulating the incoming signals, Noah ...
Egg yolk may appear runny and uniform, but on the nanoscale, it is one of the most crowded biological fluids in nature. Packed with proteins and fats, it serves as a dense storage reservoir for a developing embryo. Yet the ...
Bio & Medicine
Feb 23, 2026
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A novel method to manipulate the inner structure of cells connects several scientific fields and could represent a significant step in the treatment of neurodegenerative diseases, such as Alzheimer's and Parkinson's disease. ...
Biotechnology
Feb 18, 2026
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A team of physicists from the University of Ottawa, led by Neda Boroumand, have developed a new theoretical model that shines new light on how scientists understand the way lasers interact with dense matter, such as solids ...
Condensed Matter
Feb 17, 2026
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Adjusting the size and chemistry of nanocrystals within an ultrathin surface can speed up light-driven chemical reactions, according to a University of Michigan Engineering study published in the Journal of the American Chemical ...
Nanophysics
Feb 17, 2026
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Researchers at the Institute for Molecular Science (NINS, Japan) and SOKENDAI have demonstrated a more than 2000% voltage-induced enhancement of near-field nonlinear optical responses. To achieve this giant modulation, they ...
Optics & Photonics
Feb 3, 2026
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Researchers from Regensburg and Birmingham have overcome a fundamental limitation of optical microscopy. With the help of quantum mechanical effects, they succeeded for the first time in performing optical measurements with ...
Optics & Photonics
Jan 30, 2026
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Together with an international team, researchers from the Molecular Physics Department at the Fritz Haber Institute have revealed how atoms rearrange themselves before releasing low-energy electrons in a decay process initiated ...
General Physics
Jan 26, 2026
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Physicists have used a new optical centrifuge to control the rotation of molecules suspended in liquid helium nano-droplets, bringing them a step closer to demystifying the behavior of exotic, frictionless superfluids.
Optics & Photonics
Jan 22, 2026
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67
Scientists at the X-ray free-electron laser SwissFEL have realized a long-pursued experimental goal in physics: to show how electrons dance together. The technique, known as X-ray four-wave mixing, opens a new way to see ...
Optics & Photonics
Jan 16, 2026
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