Browsing by Author "Jida, Fikre"

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    Field Driven Translocation of a Polymer into a Circular Cavity :a Two Dimensional Monte Carlo Simulation Study
    (Addis Ababa University, 2013-06) Jida, Fikre; Yergou, Tatek (PhD)
    In this thesis the linear polymer transported into a circular cavity hole is simulated. We have used the way of Monte Carlo approach in the presence of the applied external eld to study polymer translocation into cavity hole using the 2D uctuation bond model with single{segment Monte Carlo moves. While an external eld is applied we analyze the translocation and concentrate on the translocation time into cavity hole as function of a polymer chain sizes. However there are other in uences on forced translocation i.e the eld strength,the width of cavity wall and the attractive interaction of the monomers and cavity hole, here we examined only the in uence of the length of the chain N on the forced translocation time.The major e ect of superimposed monomers number on polymer translocation has been proved. As our main result we found that a crossover scaling for translocation time with chain length N1+ where is the Flory exponent.And the polymer escape time is directly proportional with the length of polymer N