English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Macroscopic parameters as well as precise information on the random forcecharacterizing the Langevin type description of the nuclear fusion processaround the Coulomb barrier are extracted from the microscopic dynamics ofindividual nucleons by exploiting the numerical simulation of the improvedquantum molecular dynamics. It turns out that the dissipation dynamics of therelative motion between two fusing nuclei is caused by a non-Gaussiandistribution of the random force. We find that the friction coefficient as wellas the time correlation function of the random force takes particularly largevalues in a region a little bit inside of the Coulomb barrier. A clearnon-Markovian effect is observed in the time correlation function of the randomforce. It is further shown that an emergent dynamics of the fusion process canbe described by the generalized Langevin equation with memory effects byappropriately incorporating the microscopic information of individual nucleonsthrough the random force and its time correlation function.

physical review letters

Non-Gaussian Fluctuation and Non-Markovian Effect in the Nuclear Fusion  Process: Langevin Dynamics Emerging from Quantum Molecular Dynamics  Simulations