ground state


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state

 [stāt]
condition or situation.
alpha state the state of relaxation and peaceful awakefulness associated with prominent alpha brain wave activity.
anxiety state the condition of experiencing undue anxiety, as in anxiety disorders.
excited state the condition of a nucleus, atom, or molecule produced by the addition of energy to the system as the result of absorption of photons or of inelastic collisions with other particles or systems.
ground state the condition of lowest energy of a nucleus, atom, or molecule.
persistent vegetative state a condition of profound nonresponsiveness in the wakeful state caused by brain damage at whatever level and characterized by a nonfunctioning cerebral cortex, the absence of any discernible adaptive response to the external environment, akinesia, mutism, and inability to signal; the electroencephalogram may be isoelectric or show abnormal activity. Vegetative states raise ethical questions regarding appropriate care, use of resources, and allowing a patient to die.
refractory state a condition of subnormal excitability of muscle and nerve following excitation.
resting state the physiologic condition achieved by complete bed rest for at least 1 hour.
steady state dynamic equilibrium.

ground state

the normal, inactivated state of an atom from which, on activation, the singlet, triplet, and other excited states are derived.

ground state

1 the lowest energy level of a physical system. See also fatigue state.
2 the stable form of an atom or molecule.

ground state

(grownd stāt)
The normal, inactivated state of an atom from which, on activation, the singlet, triplet, and other excited states are derived.

ground state

the condition of a molecule when at its lowest energy level.

ground state

(grownd stāt)
The normal, inactivated state of an atom from which, on activation, the singlet, triplet, and other excited states are derived.

ground state,

n the state of a nucleus, an atom, or a molecule when it has its lowest energy. All other states are termed
excited.

state

condition or situation.

excited state
the condition of a nucleus, atom or molecule produced by the addition of energy to the system as the result of absorption of photons or of inelastic collisions with other particles or systems.
ground state
the condition of lowest energy of a nucleus, atom or molecule.
refractory state
a condition of subnormal excitability of muscle and nerve following excitation.
resting state
the physiological condition achieved by complete rest for at least 1 hour.
steady state
dynamic equilibrium.
References in periodicals archive ?
This discussion shows that the Hamiltonian's off diagonal matrix elements do not vanish for the J = 0 ground state of the He atom.
In this work, a special emphasis is given to the following issue: Contrary to a naive expectation, even the ground state of a simple atom is written as a sum of more than one configuration.
This is interesting because there are few probes of the u and d sea quark component of the QCD ground state in the nonperturbative regime.
Calculations show that the number of configurations required for the ground state spin-0 of the two electron He atom is not very small and that there is no single configuration that dominates the state [7].
To make ultracold molecules, physicists must coax the molecules into their lowest possible energy state, the ground state, in which internal rotation and vibration are virtually eliminated.
The second generation of leptons are formed by annihilations between the ground state down, ground state antidown, excited up, and excited antiup quarks (see the blue arrow lines of Figure 1).
For instance, adding an extra electron to the quantum dot generally produces a ground state structure of energy levels resembling that observed when the quantum dot, was in its first excited state, before the addition.
It is found that cluster model [8] succeeded in reproducing satisfactorily the properties of normal deformed ground state and super deformed excited bands [9, 10] in a wide range of even-even nuclei, 222 [less than or equal to] A [greater than or equal to] 242 [11].
Furthermore, they make the first quantitative prediction of the critical rotational frequency at which a vortex will appear in the ground state of a rotating fermion superfluid.
Only then does the ion fluoresce, as it falls back to the ground state and emits light of a specific wavelength.
It is now possible to use light to prepare and sense the quantum ground state of a nanomechanical oscillator.
Due to this interaction the [DELTA]I = 1 staggering effect, between the energies of the ground state band and the negative parity state band, is produced including beat patterns.