19 citations · 23 across the 4 of their papers we have counts for
10 papers
Directed polymers and Randomness
Somendra M. Bhattacharjee
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 d…
Is small-world network disordered?
Soumen Roy, Somendra M. Bhattacharjee
Recent renormalization group results predict non self averaging behaviour at criticality for relevant disorder. However, we find strong self averaging(SA) behaviour in the critical…
Directed polymer in a random medium - an introduction
Somendra M. Bhattacharjee
This is a set of introductory lectures on the behaviour of a directed polymer in a random medium. Both the intuitive picture that helps in developing an understanding and systemati…
Entropy and perpetual computers
Somendra M. Bhattacharjee
A definition of entropy via the Kolmogorov algorithmic complexity is discussed. As examples, we show how the meanfield theory for the Ising model, and the entropy of a perfect gas…
Is there a true Model-D critical dynamics?
Parongama Sen, Somendra M. Bhattacharjee
We show that non-locality in the conservation of both the order parameter and a noncritical density (model D dynamics) leads to new fixed points for critical dynamics. Depending up…
Unzipping DNA : A hypothesis on correlation during replication
Somendra M. Bhattacharjee
Based on the result of an unzipping phase transition by a force in a model of DNA, we hypothesize that the DnaA-type proteins act as a pulling agent with a force slightly less than…