Hi not sure if this is GR or cosmology,(adsbygoogle = window.adsbygoogle || []).push({});

does anyone know what the gravitational wave equation is for GW's produced during cosmic inflation is it just [itex] \ddot{h}+2H\dot{h} +k^{2}h=0 [/itex] because this is derivable using the FRW metric which isn't valid during inflastion, does this govern the dynamics as the waves re-enter the horizon?

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# Gravitational waves

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