Short-time character of corrections to the generalized Kadanoff-Baym Ansatz

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00619846" target="_blank" >RIV/68378271:_____/25:00619846 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/25:10510120
Result on the web
<a href="https://hdl.handle.net/11104/0368830" target="_blank" >https://hdl.handle.net/11104/0368830</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjb/s10051-025-00938-x" target="_blank" >10.1140/epjb/s10051-025-00938-x</a>

Result language
angličtina
Original language name
Short-time character of corrections to the generalized Kadanoff-Baym Ansatz
Original language description
An approximation of the Green function based on the Generalized Kadanoff–Baym Ansatz and its correction is tested on the electron tunneling through a single atom, incorporating the on-site secondorder Born interaction. Time evolution resulting from the corresponding kinetic equation for the density matrix is compared with the direct solution of the non-equilibrium Green functions. It is demonstrated that the short-time nature of corrections beyond the Generalized Kadanoff–Baym Ansatz enables their effective numerical approximation.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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