Abstract

The light scattering spectra of water in its normal and supercooled state were analyzed in the frequency range 0.3100 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$. It is shown that using the general idea of mode-coupling theory (MCT) one can describe consistently the temperature variations of both spectra and viscosity. The critical temperature estimated in the framework of MCT, ${\mathit{T}}_{\mathit{c}}$\ensuremath{\sim}220 K, is close to the well-known temperature of singularities of supercooled water. Some ideas about the relation between the critical dynamics as predicted by MCT, and the dynamics of supercooled water are discussed.

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