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The Rydberg states [1] of an atom or molecule are electronically excited states with energies that follow the Rydberg formula as they converge on an ionic state with an ionization energy. Although the Rydberg formula was developed to describe atomic energy levels, it has been used to describe many other systems that have electronic structure ...
The Rydberg states of molecules with low principal quantum numbers can interact with the other excited electronic states of the molecule. This can cause shifts in energy. The assignment of molecular Rydberg states often involves following a Rydberg series from intermediate to high principal quantum numbers. The energy of Rydberg states can be ...
Rydberg atoms form commonly in plasmas due to the recombination of electrons and positive ions; low energy recombination results in fairly stable Rydberg atoms, while recombination of electrons and positive ions with high kinetic energy often form autoionising Rydberg states. Rydberg atoms’ large sizes and susceptibility to perturbation and ...
Jan Rydberg, (1923-2015), Swedish chemist who worked on nuclear chemistry and recycling at Chalmers University of Technology; Johannes Rydberg (1854–1919), Swedish physicist and deviser of the Rydberg formula; Kaisu-Mirjami Rydberg (1905–1959), Finnish journalist and politician; Per Axel Rydberg (1860–1931), Swedish-American botanist
The circularized near-threshold Rydberg state is more likely to undergo a core photoabsorption than to absorb a photon and directly ionize the Rydberg state. PIRI extends the near-threshold spectroscopic techniques to allow access to the electronic states (including dissociative molecular states and other hard to study systems) as well as the ...
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Rydberg matter [1] is an exotic phase of matter formed by Rydberg atoms; it was predicted around 1980 by É. A. Manykin, M. I. Ozhovan and P. P. Poluéktov. [2] [3] It has been formed from various elements like caesium, [4] potassium, [5] hydrogen [6] [7] and nitrogen; [8] studies have been conducted on theoretical possibilities like sodium, beryllium, magnesium and calcium. [9]
A heavy Rydberg system consists of a weakly bound positive and negative ion orbiting their common centre of mass. Such systems share many properties with the conventional Rydberg atom and consequently are sometimes referred to as heavy Rydberg atoms. While such a system is a type of ionically bound molecule, it should not be confused with a ...