ground state

(redirected from ground states)
Also found in: Dictionary, Thesaurus, Encyclopedia.

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 ?
baryon is the ground state of the three sss quarks and each of the baryons of the decuplet has an antisymmetric space-spin wave function.
of the ground state of the A = 31 nuclei displayed in the first line of table 1.
Thus, in spite of being a part of the decuplet whose members have space-spin antisymmetric states, these three baryons are the ground state of the uuu, ddd and sss quarks, respectively.
The first piece is the ground state wavefunction \[[PSI].
The molecular Rabi matrix elements depend on the excited rovibrational-hyperfine state quantum numbers, F'p'[beta]vJ', and the ground state hyperfine levels [f.
Below we will briefly describe each of these three theoretical parts while emphasizing those portions relevant to the current problem of extracting ground state scattering lengths.
Although we have set up a complete quantum scattering calculation for two ground state atoms with hyperfine structure, as described in the previous section, a sufficiently accurate model of [S.
Uncertainty in the extrapolation of the RKR region of the potenti al leads to uncertainty in the exact position of the last ground state vibrational level, and consequently uncertainty in the scattering length.
We can therefore evaluate the ground state Hamiltonian in the atomic hyperfine basis \Fplf[alpha]) for fixed values of the total angular momentum F = l+f and parity p, where here a designates {[f.
4 we show the radial density of three ground state wavefunctions as a function of internuclear separation.
This involves summing over all ground state hyperfine components and, as expected, yields ~ 20 MHz for the purely long range [0.
The absorption of a photon excites the colliding atoms from a ground state scattering wave into a bound excited state molecule.