quantum number

(redirected from Quantum numbers)
Also found in: Encyclopedia.
Related to Quantum numbers: Electron configuration

quantum number

n.
Any of a set of real numbers assigned to a physical system that individually characterize the properties and collectively specify the state of a particle or of the system.

quantum number

n
(Atomic Physics) physics one of a set of integers or half-integers characterizing the energy states of a particle or system of particles. A function of the number multiplied by a fixed quantity gives the observed value of some specified physical quantity possessed by the system

quan′tum num`ber



n.
any integer or half of an odd integer that distinguishes one of the discrete states of a quantum-mechanical system.
References in periodicals archive ?
* [S.sub.1] = [[([v.sup.0.sub.e], e-, E-) [producto cruzado] e+ [producto cruzado] E+].sub.L] with quantum numbers (1, 3,-2/3); (1, 1, 1) and (1, 1, 1) respectively.
We propose to return to the old quantum theory of Bohr-Sommerfeld to search for a new Ersatz Model of the atom where the four quantum numbers are related to electron orbitals.
There are two more topological quantum numbers which relate to spin and photon number.
621) actually applied [(J + 1/2).sup.2] rather than J (J + 1), consistent with previous experimental work in which he had proved the necessity of half-integer vibrational quantum numbers (Mulliken, 1924).
The two particle states are defined by four quantum numbers j = (n,m;N,M) and [alpha] = (r,s;R,S), where n, N, r, R are the main quantum numbers and m, M, s, S are the angular momenta of entering single particle states.
In our numerical work, we solve (6) with the adiabatic potential (7) by using the numerical trigonometric sweep method [23] and we find electron energies [E.sub.m,n] for twenty different magnetic quantum numbers m = 0,-1, -2, ..., -19 and two different axial quantum numbers n= 1,2.
Using different approximations, considerable efforts have been made for calculating these integrals over STOs with noninteger principal quantum numbers n (NISTOs).
Their topics include quantum chromodynamics and deep inelastic scattering, the number of neutrinos and the Z line shape, asymmetries at the Z poles: the quark and lepton quantum numbers, theoretical aspects of the production of electroweak bosons at hadron colliders, rare decays probing physics beyond the standard theory, and the supersymmetry standard model.
For the first time settlement and experimentally investigated for a round galvanized steel wires, is confirmed the important fundamentals of the theory of electricity electrophysical the fact that in this metal conductor used with aperiodic pulsed axial current conduction time form 9 ms/160 ms and high density (about 0.37 kA/[mm.sup.2]) in the longitudinal direction extend quantized coherent electronic half-wave of de Broglie length [[lambda].sub.enz]/2 defined during the investigations by the quantum numbers n=1,3,9.
Figure 2(b) demonstrates how the potential peaks (corresponding to the local maximum for the [V.sub.eff]) depend on the radius of the buckyball for various angular momentum quantum numbers L.
After fixing the sets of normal-mode quantum numbers, we employed the method described in Section 2.2 to obtain the corresponding initial conditions in Cartesian coordinates for each set.
The 4 Light Photons pre-established 5 Flavors of the newly discovered HIGGS particles, 4 Quantum Numbers governing properties of the Periodic Table of Anti-Matter and Matter.