In the weak field approximation,(adsbygoogle = window.adsbygoogle || []).push({});

[itex]g_{\mu\nu}=\eta_{\mu\nu}+h_{\mu\nu}[/itex]

If we make a coordinate transformation of the form

[itex]x^{\mu'}=x^{\mu}+\xi^{\mu}(x)[\itex]

it changes [itex]h_{\mu\nu}[\itex] to

[itex]h'_{\mu\nu}=h_{\mu\nu}+\xi_{\mu,\nu}+\xi_{\nu,\mu}+O(\xi^{2})[\itex]

I was wondering if anyone could shed some light on what form the higher order terms take. I have an inkling it's terms from a taylor series expansion but i'm not sure.

Thanks

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# 2nd order correction to gauge transformation

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