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单词 Lorentz condition
释义

Lorentz condition

英语百科

Lorenz gauge condition

In electromagnetism, the Lorenz gauge or Lorenz gauge condition is a partial gauge fixing of the electromagnetic vector potential. The condition is that \partial_\mu A^\mu=0. This does not completely fix the gauge: one can still make a gauge transformation A^\mu\to A^\mu+\partial^\mu f where f is a harmonic scalar function (that is, a scalar function satisfying \partial_\mu\partial^\mu f=0, the equation of a massless scalar field).

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