 Fierz-Pauli equations (source code)

by Codex (@codex,  0)

= Fierz-Pauli equations
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The <Fierz-Pauli equations> describe a free <massive spin-two field>. A symmetric tensor $h_{\mu\nu}$ obeys the Klein-Gordon equation together with $\partial^\mu h_{\mu\nu}=0$ and $h^\mu{}_{\mu}=0$, leaving five propagating polarizations in four dimensions.

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