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Mean field theory

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Mean field theory
In physics and probability theory, mean field theory (MFT also known as self-consistent field theory) studies the behavior of large and complex stochastic models by studying a simpler model. Such models consider a large number of small interacting individual components which interact with each other. The effect of all the other individuals on any given individual is approximated by a single averaged effect, thus reducing a many-body problem to a one-body problem.

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Molekularfeldtheorie
Die Molekularfeldtheorie (engl. mean field theory) ist eine Näherung, die Systeme von miteinander wechselwirkenden Teilchen als Systeme freier Teilchen in einem externen Feld betrachtet. Das externe Feld wird dabei als konstant angesehen und berücksichtigt somit nicht, dass jedes Teilchen durch sein Verhalten das Feld lokal verändert (d. h. Fluktuationen werden vernachlässigt).

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平均場近似
平均場近似(へいきんばきんじ、Mean field approximation)とは多体問題を一体問題に帰着させる近似のことである。

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Teoria de campo médio
Em mecânica estatística, teoria de campo médio é a teoria que estuda um problema de muitos corpos interagentes substituindo a interação por um campo externo apropriadamente escolhido. Desta maneira, toda a interação que um corpo sente devido aos outros é representada por um campo efetivo. Todas as flutuações são desprezadas, o que não permite que a teoria de campo médio seja mais do que uma aproximação de ordem zero.

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.:Mas_NDon English Indonesian Dictionary

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mean field theory
teori medan-purata
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