Dynamical vertex correction to the generalized Kadanoff-Baym Ansatz

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00569325" target="_blank" >RIV/68378271:_____/23:00569325 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/23:10456142
Result on the web
<a href="https://doi.org/10.1209/0295-5075/acad9b" target="_blank" >https://doi.org/10.1209/0295-5075/acad9b</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1209/0295-5075/acad9b" target="_blank" >10.1209/0295-5075/acad9b</a>

Result language
angličtina
Original language name
Dynamical vertex correction to the generalized Kadanoff-Baym Ansatz
Original language description
The Generalized Kadanoff-Baym Ansatz, used to simplify the non-equilibrium Green's functions to the kinetic equation for the density matrix, leads to an incorrect dynamics of a system if the selfenergy has a rich energy spectrum. We propose an approximation of the vertex correction which dynamically changes with the density matrix while it benefits from simplicity of stationary propagators. On the molecular bridge between ferromagnetic leads, we demonstrate that this simple vertex fixes the failure of the kinetic equation on a negligible computational cost.
Czech name
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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
<a href="/en/project/GA21-11089S" target="_blank" >GA21-11089S: Terahertz magneto-spectroscopy of superconducting films</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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