Universal Sound Absorption in Amorphous Solids: A Theory of Elastically Coupled Generic Blocks

Details Universal Sound Absorption in Amorphous Solids: A Theory of Elastically Coupled Generic Blocks Universal Sound Absorption in Amorphous Solids: A Theory of Elastically Coupled Generic Blocks

2011-03-29

arxiv.org/abs/1103.5530v3

Physics

Condensed Matter

Disordered Systems and Neural Networks

(Revised) 16 pages, 2 figures. To appear in Journal of Non-Crystalline Solids

Scientific paper

Glasses are known to exhibit quantitative universalities at low temperatures,
the most striking of which is the ultrasonic attenuation coefficient 1/Q. In
this work we develop a theory of coupled generic blocks with a certain
randomness property to show that universality emerges essentially due to the
interactions between elastic blocks, regardless of their microscopic nature.

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