classical approximation

classical approximation

[′klas·ə·kəl ə‚präk·sə′mā·shən]
(quantum mechanics)
The approximation that Planck's constant may be considered infinitely small; the laws of quantum mechanics must then reduce to those of classical mechanics.
References in periodicals archive ?
We also show that the classical approximation is a MOND-type theory and compute its parameter.
The classical approximation for this integral consists in assuming that all terms are negligible with respect to the first one on the right-hand side of (6).
In the classical approximation that realm of quantum uncertainty collapses to zero, thereby producing the physical determinateness of classical physics.
Lack of classical approximation functions (Weibull, exponential, Log-normal) for modeling the failure rate is that the modeled failure rate function [lambda] (t) in some cases of the experimental data has relatively poorly approximation of the experimental data.
In section 4 we discuss approximation methods based on classical approximation theory, including Chebyshev and Newton polynomials, and related approaches.
The first, and most familiar, is the classical approximation ratio measure.
In the classical approximation, atoms are treated as tiny solid objects that stick together in chemical combinations.
The main features of radiative [beta]-decay have been derived in the classical approximation by Jackson [1] who assumes that an electron is created at the origin at t = 0 with constant velocity v = c[beta], in which case radiation of angular frequency [omega] is emitted in the direction of the unit vector n with an angular distribution in energy per unit time per unit interval of angular frequency
Thus, in a classical approximation there exists a correspondence between the minimisation of the 4-volume of the flow u(x, [tau]) on the cylinder and the minimisation of the 4-volume of the static flow defined in the Minkowski space by the vector field g(x), namely:
Just as in the classical approximation theory, the weighted modulus of smoothness and the weighted K-functional are equivalent [34].
Atomic behavior (small numbers of subatomic particles): No, the classical approximation of atoms as solid bits of matter is almost utterly useless.

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