ground state


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Ground state

In quantum mechanics, the stationary state of lowest energy of a particle or a system of particles. The ground state may be bound or unbound; when bound, its energy generally is a finite amount less than the energy of the next higher or first excited state. In the typical circumstance that the potential energy is zero at infinite separation, the magnitude of the negative ground-state energy is the binding energy, that is, the energy required to separate all the particles infinitely. See Energy level (quantum mechanics), Excited state, Nuclear binding energy

ground state

See energy level.

ground state

[′grau̇nd ‚stāt]
(quantum mechanics)
The stationary state of lowest energy of a particle or a system of particles.
References in periodicals archive ?
Let us use the principles described in the previous section and try to find the structure of the helium atom ground state.
of the ground state of the A = 31 nuclei displayed in the first line of table 1.
In the heavy nuclei for which the anapole moment is a well-defined observable, the main contribution to the anapole moment comes from PV admixtures in the nuclear ground state wave function.
A comparison of the expansion of the He atom ground state (3) and that of the proton (10) shows the following points:
Formation of Ultra-cold Polar Molecules in the Rovibrational Ground State.
The first generation of leptons is formed by annihilations between the ground state up, ground state antiup, ground state down, and ground state antidown quarks (see the red arrow lines of Figure 1).
1] state), the resulting nuclear polarization is transferred to the ground state by metastability exchange collisions.
To nail down the magnetic moment, the Harvard group aims to measure accurately the photon frequency that most effectively boosts the electron from the ground state to the next-wider orbit, Gabrielse says.
For example, no one knows whether electrons in the ground state tend to pair up so that they have opposite spins, as they do in atoms.
The existence of gravitational waves, their emission processes and the determination of the true ground state of ultra-dense matter are fascinating problems that can only be addressed with exceptional astrophysical laboratories like compact objects.
Staggering effect has been calculated and beat patterns are obtained which indicate the existence of an interaction between the ground state band, (GSB), and the octupole negative parity band, (NPB).
Coverage begins with explication of ground state properties of rare gas fluids and their microscopic foundations.