596 citations · 1.9k across the 99 of their papers we have counts for
5 papers · 1 filter
Persistence and dynamics in ANNNI chain
Parongama Sen, Subinay Dasgupta
We investigate both the local and global persistence behaviour in ANNNI (axial next-nearest neighour Ising) model. We find that when the ratio of the second neighbour interacti…
Directed Accelerated Growth: Application in Citation Network
Parongama Sen
In many real world networks, the number of links increases nonlinearly with the number of nodes. Models of such accelerated growth have been considered earlier with deterministic a…
Aging in Citation Networks
Kamalika Basu Hajra, Parongama sen
In many growing networks, the age of the nodes plays an important role in deciding the attachment probability of the incoming nodes. For example, in a citation network, very old pa…
Phase Transitions in an Aging Network
Kamalika Basu Hajra, Parongama Sen
We consider a growing network in which an incoming node gets attached to the existing node with the probability , where is the degree of…
Probability distribution of persistent spins in a Ising chain
Pratap Kumar Das, Parongama Sen
We study the probability distribution of , the fraction of spins unflipped till time , in a Ising chain with ferromagnetic interactions. The distribution shows a…