excited state

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Excited state

In quantum mechanics, a stationary state of higher energy than the lowest stationary state or ground state of a particle or a system of particles. Customarily, only bound stationary states, which generally are at most denumerably infinite in number, are spoken of as excited, although the formal quantum theory often treats the noncountable unbound stationary states on an equal footing with the bound states. See Ground state, Metastable state

excited state

See energy level; excitation.

excited state

[ek′sīd·əd ′stāt]
(quantum mechanics)
A stationary state of higher energy than the lowest stationary state or ground state of a particle or system of particles.
References in periodicals archive ?
The planned experiments will be directed toward understanding the effects of static and time-dependent electric and magnetic fields, and blackbody radiation fields on slow dissociation processes that occur in highly excited states of N2, O2 and NO, investigations of collisional energy transfer processes, and studies of the role that these excited electronic states play in the evolution and reactivity of atmospheric plasmas incl
In this work, the attention has been focused to the spatial electron distribution in the Hydrogen atom, considering the ground state (n = 1) and the first low-lying excited electronic states (n = 2-6).
Paper topics here include positional isotope effects for the water tetramer, dynamic breaking and reporting of finite water chains inside carbon nanotubes, a density functional study of Beryllium clusters, interaction of nitric oxide and nitrous oxide dimer with silver clusters, Li and Be clusters, enhancements of fullerene stability from excited electronic states and recent advances in the fusion and fission of atomic clusters.