2005/05/11 by Somendra M. Bhattacharjee, Bhattacharjee, Somendra M.
Biochemistry, Genetics and Molecular Biology · Mathematics · Physics and Astronomy · #Diffusion and Search Dynamics #Stochastic processes and statistical mechanics #Theoretical and Computational Physics #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.cond-mat/0505283
49 pages; To appear in "Statistics of Linear Polymers in Disordered Media", ed. by B.K. Chakrabarti, Elsevier 2005
arxiv created 2005/05/11 · arxiv updated 2009/12/01
The effects of two types of randomness on the behaviour of directed polymers are discussed in this chapter. The first part deals with the effect of randomness in medium so that a directed polymer feels a random external potential. The second part deals with the RANI model of two directed polymers with heterogeneity along the chain such that the interaction is random. The random medium problem is better understood compared to the RANI model.