Resumé
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) |
| Vol/bind | 72 |
| Sider (fra-til) | 011501 [artikel nummer] |
| ISSN | 1539-3755 |
| Status | Udgivet - 2005 |
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Solidity of viscous liquids. III : Alpha relaxation. / Dyre, Jeppe.
I: Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Bind 72, 2005, s. 011501 [artikel nummer].Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
TY - JOUR
T1 - Solidity of viscous liquids. III
T2 - Alpha relaxation
AU - Dyre, Jeppe
PY - 2005
Y1 - 2005
N2 - It is suggested that the omega^{-1/2} high-frequency decay of the alpha loss in highly viscous liquids, which appears to be generic, is a manifestation of a negative long-time tail as typically encountered in stochastic dynamics. The proposed mechanism requires that the coherent diffusion constant is much larger than estimated from the alpha relaxation time. This is shown to follow from the solidity of viscous liquids in an argument which, utilizing the irrelevance of momentum conservation at high viscosity, predicts that at high viscosity the coherent diffusion constant is much larger than the incoherent diffusion constant.
AB - It is suggested that the omega^{-1/2} high-frequency decay of the alpha loss in highly viscous liquids, which appears to be generic, is a manifestation of a negative long-time tail as typically encountered in stochastic dynamics. The proposed mechanism requires that the coherent diffusion constant is much larger than estimated from the alpha relaxation time. This is shown to follow from the solidity of viscous liquids in an argument which, utilizing the irrelevance of momentum conservation at high viscosity, predicts that at high viscosity the coherent diffusion constant is much larger than the incoherent diffusion constant.
M3 - Journal article
VL - 72
SP - 011501 [artikel nummer]
JO - Physical Review E
JF - Physical Review E
SN - 2470-0045
ER -