In scattering theory and, in particular in quantum mechanics, the Born approximation consists of taking the incident field in place of the total field as the driving field at each point in the scatterer. Born approximation is named after Max Born, winner of the 1954 Nobel Prize for physics.
It is the perturbation method applied to scattering by an extended body. It is accurate if the scattered field is small, compared to the incident field, in the scatterer.
For example, the radar scattering of radio waves by a light styrofoam column can be approximated by assuming that each part of the plastic is polarized by the same electric field that would be present at that point without the column, and then calculating the scattering as a radiation integral over that polarization distribution.
Other articles related to "born approximation, born":
... The Born approximation is simplest when the incident waves are plane waves ... In the distorted wave Born approximation (DWBA), the incident waves are solutions to a part of the problem that is treated by some other method, either analytical or ... This gives the non-Born preliminary equation and the Born approximation Other applications include bremsstrahlung and the photoelectric effect ...
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