Back-reaction

（重定向自Backreaction）

In theoretical physics, back-reaction is often necessary to calculate the behavior of a particle or an object in an external field.

When the particle is considered to be infinitely light or have an infinitesimal charge, it is said that we deal with a probe and the back-reaction is neglected. However, a real object also carries a mass and charges itself.

单词	Backreaction
释义	Backreaction 英语百科 Back-reaction （重定向自Backreaction） In theoretical physics, back-reaction is often necessary to calculate the behavior of a particle or an object in an external field. When the particle is considered to be infinitely light or have an infinitesimal charge, it is said that we deal with a probe and the back-reaction is neglected. However, a real object also carries a mass and charges itself.
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