Articles with "self energy" as a keyword



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Exploring hydrogen production for self-energy generation in electroremediation: A proof of concept

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Published in 2019 at "Applied Energy"

DOI: 10.1016/j.apenergy.2019.113839

Abstract: Abstract Electrodialytic technologies are clean-up processes based on the application of a low-level electrical current to produce electrolysis reactions and the consequent electrochemically-induced transport of contaminants. These treatments inherently produce electrolytic hydrogen, an energy carrier,… read more here.

Keywords: energy; hydrogen; energy generation; self energy ... See more keywords
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Electronic band gaps corrections using total energy with DFT/LDA-½ quasi-particle approximation

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Published in 2019 at "Computational Materials Science"

DOI: 10.1016/j.commatsci.2019.05.048

Abstract: Abstract The established modus operandi on the application of the LDA-½ quasi-particle approximation methodology is to optimize the cutoff radius of the electrostatic self-energy function, in order to be applied inside the infinite crystal model.… read more here.

Keywords: cutoff radius; band; band gaps; energy ... See more keywords
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Assessing the G0W0Γ0(1) Approach: Beyond G0W0 with Hedin's Full Second-Order Self-Energy Contribution.

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Published in 2021 at "Journal of chemical theory and computation"

DOI: 10.1021/acs.jctc.1c00488

Abstract: We present and benchmark a self-energy approach for quasiparticle energy calculations that goes beyond Hedin's GW approximation by adding the full second-order self-energy (FSOS-W) contribution. The FSOS-W diagram involves two screened Coulomb interaction (W) lines,… read more here.

Keywords: self energy; full second; second order; energy ... See more keywords
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Monte Carlo Second- and Third-Order Many-Body Green's Function Methods with Frequency-Dependent, Non-Diagonal Self-Energy.

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Published in 2019 at "Journal of chemical theory and computation"

DOI: 10.1021/acs.jctc.9b00693

Abstract: We fully develop the Monte Carlo many-body Green's function (MC-GF) method with the following enhancements: (1) The truncation order of the perturbation expansion of the Dyson self-energy is raised from the second order (MC-GF2) to… read more here.

Keywords: order; energy; monte carlo; third order ... See more keywords
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Identification of non-Fermi liquid fermionic self-energy from quantum Monte Carlo data

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Published in 2020 at "npj Quantum Materials"

DOI: 10.1038/s41535-020-00266-6

Abstract: Quantum Monte Carlo (QMC) simulations of correlated electron systems provide unbiased information about system behavior at a quantum critical point (QCP) and can verify or disprove the existing theories of non-Fermi liquid (NFL) behavior at… read more here.

Keywords: quantum; monte carlo; quantum monte; self energy ... See more keywords
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Ferroelectric fatigue in layered perovskites from self-energy corrected density functional theory

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Published in 2017 at "RSC Advances"

DOI: 10.1039/c7ra01650f

Abstract: We employed self-energy corrected density functional theory (GGA-1/2) to investigate the band alignment between platinum and the layered perovskite Aurivillius ferroelectrics SrBi2Ta2O9 (SBT), Bi4Ti3O12 (BIT), and La-substituted BIT (BLT). The original GGA-1/2 method was found… read more here.

Keywords: density functional; bit; self energy; energy corrected ... See more keywords
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Pairing glue in cuprate superconductors from the self-energy revealed via machine learning

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.180510

Abstract: Recently, machine learning was applied to extract both the normal and the anomalous components of the self-energy from photoemission data at the antinodal points in Bi- based cuprate high-temperature superconductors[Y. Yamajiet al.,arXiv:1903.08060]. It was argued… read more here.

Keywords: pairing glue; glue cuprate; energy; self energy ... See more keywords
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Role of three-particle vertex within dual fermion calculations

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Published in 2017 at "Physical Review B"

DOI: 10.1103/physrevb.96.235127

Abstract: We investigate the influence of self-energy diagrams beyond the two-particle vertex level within dual fermion theory. Specifically, we calculate the local three-particle vertex and construct from it selected dual fermion self-energy corrections to dynamical mean… read more here.

Keywords: self energy; dual fermion; three particle; particle vertex ... See more keywords
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Self-energy driven resonancelike inelastic neutron spectrum in the s++ -wave state in Fe-based superconductors

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Published in 2018 at "Physical Review B"

DOI: 10.1103/physrevb.98.165143

Abstract: To elucidate the pairing states in Fe-based superconductors, we perform careful calculation of the dynamical spin susceptibility $\chi^S(q, \omega)$ at very low temperatures ($T \sim 1$ meV). The feedback effect on both the self-energy and… read more here.

Keywords: state; wave state; self energy; chi omega ... See more keywords
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Photon self-energy in a magnetized chiral plasma from kinetic theory

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Published in 2020 at "Physical Review D"

DOI: 10.1103/physrevd.102.014011

Abstract: We study the photon self-energy in magnetized chiral plasma by solving the response of electromagnetic field perturbations in chiral kinetic theory with Landau level states. With lowest Landau level approximation and in collisionless limit, we… read more here.

Keywords: field; photon self; magnetized chiral; self energy ... See more keywords
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Cubic interaction vertices and one-loop self-energy in the stable string bit model

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Published in 2017 at "Physical Review D"

DOI: 10.1103/physrevd.96.046021

Abstract: We provide a formalism to calculate the cubic interaction vertices of the stable string bit model, in which string bits have $s$ spin degrees of freedom but no space to move. With the vertices, we… read more here.

Keywords: one loop; cubic interaction; loop self; loop ... See more keywords