INVESTIGADORES
TERRANOVA Guillermo Roberto
artículos
Título:
Effects of length fluctuations on the viscosity exponent in the necklace model
Autor/es:
C. M. ALDAO; G. R. TERRANOVA; H. O. MÁRTIN
Revista:
JOURNAL OF PHYSICS. A - MATHEMATICAL AND GENERAL
Editorial:
IOP PUBLISHING
Referencias:
Año: 2009 vol. 42 p. 165005 - 165005
ISSN:
0305-4470
Resumen:
It is commonly accepted that contour length fluctuations increase the viscosityexponent for chains that diffuse by reptation. We found that length fluctuationsin the necklace model can play an unexpected role as they can also decrease thisexponent. A detailed analysis of the interplay between the discrete characterof the model and how the fluctuations take place is presented in this work.Basically, we found that when fluctuations are symmetric their influence is theexpected one; when fluctuations are not symmetric new effects can appear.
