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.
Networks of protein fibers play important roles in living cells. To understand the dynamical behavior of these networks, model networks are needed to perform in vitro studies. However, fabrication of protein networks similar ...
Biotechnology
20 hours ago
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Nonlinear interactions between light and matter are at the heart of some of the most powerful tools in modern optics, but pushing these processes to their limits has long been hampered by a fundamental constraint: the stronger ...
University of Calgary researchers are a part of a group who just got one step closer to solving a mystery of the universe. Dr. Timothy Friesen, Ph.D., an associate professor of Physics and Astronomy in the Faculty of Science, ...
General Physics
May 29, 2026
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For two decades, physicists have predicted the existence of a remarkable family of exotic molecules: giant atoms bound to ordinary atoms, with an electron so distant from its nucleus that it sculpts the pair into bizarre ...
From smartphone charging to hydrogen production, the fundamental principles of energy technology have been revealed. Korean researchers have, for the first time, identified how molecular structures change within the ultra-small ...
Nanophysics
May 4, 2026
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A team of scientists has identified a new physical mechanism that could help explain one of the most persistent mysteries in science: why life consistently uses one "handed" version of its molecules and not the other. In ...
Bio & Medicine
Apr 22, 2026
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Researchers have discovered a new way to tune the quantum properties of tiny defects in diamond—by gently stretching or compressing the crystal. These findings could pave the way for next-generation sensors that can detect ...
Condensed Matter
Apr 21, 2026
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A new theoretical study finds shorter laser pulses achieve higher quantum efficiency for photoemission from a solid surface without increasing power or intensity. Using light to knock electrons loose from a surface—known ...
Optics & Photonics
Apr 20, 2026
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Predicting material properties remains a major challenge in materials science, as it often requires complex and computationally intensive calculations. In particular, understanding how materials respond to electric fields ...
Condensed Matter
Apr 18, 2026
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By directing pulses of laser light at atoms, researchers can study how radioactive elements decay in a matter of seconds. The method is described in a new thesis from the University of Gothenburg, which shows that the atomic ...
General Physics
Apr 16, 2026
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