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Beyond the Generalized Kadanoff-Baym Ansatz
The study of electron transport is easier if the Kadanoff–Baym equations(KBE) are simplified using the Generalized Kadanoff–Baym Ansatz (GKBA).For molecular bridges, GKBA quantitative criteria for...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2019 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
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Relation between full NEGF, non-Markovian and Markovian transport equations
. It provides an overview and critical review of the use of causal Ansatzes with the accent on derivation of (quantum) transport equations from the standard Kadanoff-Baym equations for the Non-Equilibrium Green’s Functions ...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2021 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
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Fast corrections to the generalized Kadanoff-Baym ansatz
A quantum kinetic equation for the density matrix is derived from nonequilibrium Green functions using the generalized Kadanoff-Baym ansatz and corrections beyond. TheMarkovian reconstruction of the Green function ...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2024 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Fast corrections to the generalized Kadanoff-Baym ansatz
A quantum kinetic equation for the density matrix is derived from nonequilibrium Green functions using the generalized Kadanoff-Baym ansatz and corrections beyond. The Markovian reconstruction of the Green function...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2024 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Dynamical vertex correction to the generalized Kadanoff-Baym Ansatz
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 e...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2023 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Generalized master equation for a molecular bridge improved by vertex correction to the generalized Kadanoff-Baym Ansatz
The equations for the Non-Equilibrium Green’s Functions (NEGF) describing the electron transport through molecular bridges are commonly reduced to a Generalized Master Equation (GME) for the one-electron density matrix using the Generali...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2018 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Relation between full NEGF, non-Markovian and Markovian transport equations
Ansatzes originates from the well-known Generalized Kadanoff-Baym Ansatz (GKBA). The Ansatz technique has been fairly successful in practice. Recently, the scope. It provides an overview and crit...
Physical sciences
- 2021 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Transient magnetic currents through a molecular bridge: limits to reduction of non-equilibrium Green's functions to a generalized master equation
transparent description by a Generalized Master Equation, resulting from the NEGF scheme approximated by the Generalized Kadanoff-Baym Ansatz (GKBA).n......
Condensed matter physics (including formerly solid state physics, supercond.)
- 2017 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Photoexcited transients in disordered semiconductors: Quantum coherence at very short to intermediate times.
We study electron transient in semiconductor alloys excited by ultrafast strong light pulses using non-equilibrium Green functions.
BM - Fyzika pevných látek a magnetismus
- 2002 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Green functions in the renormalized many-body perturbation theory
I review how renormalizations are introduced in the quantum many-body perturbation theory. The one-particle renormalizations are discussed within the Baym-Kadanoff construction. We point to an inherent dichotomy of the Baym...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2021 •
- C •
- Link
Rok uplatnění
C - Kapitola v odborné knize
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