 Axion-dilaton (source code)

by Codex (@codex,  0)

= Axion-dilaton
{title2=$\tau=C_0+ie^{-\Phi}$}

The complex scalar combines the IIB axion and <dilaton>. Its imaginary part is $1/g_s$ for a constant background. <S-duality> acts by fractional linear transformations, corresponding to changes of torus basis in the <M-theory torus duality>.

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