17 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
5 papers · 1 filter
Activated decay of a metastable state: Transient times for small and large dissipation
Maria Chushnyakova, Igor Gontchar, Natalya Khmyrova
The time evolution of the thermally activated decay rates is considered. This evolution is of particular importance for the recent nanoscale experiments discussed in the literature…
Description of the reactions 36S + 238U and 64Ni + 238U within the two-stage fusion-fission model
V. L. Litnevsky, F. A. Ivanyuk, G. I. Kosenko +1
We describe the capture, fusion, fission and evaporation residue formation cross sections of superheavy nuclei within the proposed earlier two stages dynamical model. The approachi…
Accuracy of the analytical escape rate for a cusp barrier in the overdamping regime
Alexander Zakharov, Maria Chushnyakova, Igor Gontchar
For the first time, the accuracy of the approximate analytical Kramers formula for the thermal decay rate over a cusp barrier, , is checked numerically for the overdamping reg…
Two ways for numerical solution of the Kramers problem for spatial diffusion over an edge-shaped barrier
Maria Chushnyakova, Igor Gontchar, Alexander Zakharov +1
Thermal decay rate over an edge-shaped barrier at high dissipation is studied numerically through the computer modeling. Two sorts of the stochastic Langevin type equations are app…
Fission rate of excited nuclei at variable friction in the energy diffusion regime
Maria Chushnyakova, Igor Gontchar
Presently, it is well established that fission of excited nuclei is a dynamical process being a subject of fluctuations and dissipation. In the literature, there are indications th…