A heteropolymer in a medium with random droplets
نویسندگان
چکیده
منابع مشابه
A Heteropolymer in a Medium with Random Droplets
1.1. Definition of the model. We start with the definition of the model. The dimension is denoted by d+1, d≥ 1. Then our model has three random ingredients: (1) a (d+ 1)-dimensional random medium, described by η; (2) a (d+1)-dimensional directed random walk, described by S; (3) a sequence of random variables ω, taking values ±1 describing the random monomers. So let us formally define all these...
متن کاملEntropic droplets and activated events near the glass transition of a random heteropolymer
The barriers between metastable states near the glass transition of a random heteropolymer are studied using replicas by describing inhomogeneous states. The instanton solution for a replica space free energy functional is found numerically to estimate the size of activation barriers and of the critical nuclei themselves between the dynamic and the static glass transition temperatures. Typeset ...
متن کاملRandom heteropolymer dynamics.
We study the Langevin dynamics of the standard random heteropolymer model by mapping the problem to a supersymmetric field theory using the Martin-Siggia-Rose formalism. The resulting model is solved nonperturbatively employing a Gaussian variational approach. In constructing the solution, we assume that the chain is very long and impose the translational invariance which is expected to be pres...
متن کاملBehavior of a random heteropolymer in mixed solvents
I use a Landau theory to study the behavior of A – B heteropolymers with disordered sequences immersed in a binary solvent mixture. Segments of type A are preferentially solvated in one type of solvent, and those of type B prefer the other type of solvent. At high temperatures, the behavior is qualitatively the same as that in a single solvent. As the temperature approaches the critical tempera...
متن کاملDynamic Properties of Random Heteropolymer with Correlations in Sequence
The some dynamic properties of a random heteropolymer in the condensed state are studied in the mode coupling approximation. In agreement with recent report a dynamic friction increasing is predicted for the random heteropolymer with power-law correlations in comparison with exponential correlations. In the case of strong power-law correlations (β > β *) the dynamic friction function diverge in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Annals of Applied Probability
سال: 2006
ISSN: 1050-5164
DOI: 10.1214/105051606000000231