108 citations · 301 across the 14 of their papers we have counts for
14 papers
Thermally activated barrier crossing rate for a coupled system moving in a ratchet potential
Mesfin Asfaw
We explore the dependence of the thermally activated barrier crossing rate on various model parameters for a dimer that undergoes a Brownian motion on a piecewise linear bistable p…
Noise-created bistability and stochastic resonance of impurities diffusing in a semiconductor layer
Mesfin Asfaw, Berhanu Aragie, Mulugeta Bekele
We investigate the dynamics of impurities walking along a semiconductor layer assisted by thermal noise of strength and external harmonic potential . Applying a nonhomoge…
Thermally activated barrier crossing and stochastic resonance of a flexible polymer chain in a piecewise linear bistable potential
Mesfin Asfaw
We study the stochastic resonance (SR) of a flexible polymer chain crossing over a piecewise linear bistable potential. The dependence of signal to noise ratio on noise inten…
Lateral phase separation of confined membranes
Mesfin Asfaw
We consider membranes interacting via short, intermediate and long stickers. The effects of the intermediate stickers on the lateral phase separation of the membranes are studied v…
Stochastic Resonance of a Flexible Chain Crossing over a Barrier
Mesfin Asfaw, Wokyung Sung
We study the stochastic resonance (SR) of a flexible polymer surmounting a bistable-potential barrier. Due to the flexibility that can enhance crossing rate and change chain confor…
Adhesion of membranes via receptor-ligand complexes: Domain formation, binding cooperativity, and active processes
Thomas R. Weikl, Mesfin Asfaw, Heinrich Krobath +2
Cell membranes interact via anchored receptor and ligand molecules. Central questions on cell adhesion concern the binding affinity of these membrane-anchored molecules, the mechan…