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   Articles with "self energy" as a keyword



On the photon self-energy to three loops in QED

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recommendations! Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep03(2025)148

Abstract: We compute the photon self-energy to three loops in Quantum Electrodynamics. The method of differential equations for Feynman integrals and a complete ϵ-factorization of the former allow us to obtain fully analytical results in terms… read more here.

Keywords: energy; photon self; self energy; energy three ... See more keywords

Self-Energy approximation for the running coupling constant in thermal ϕ4 theory using Imaginary Time Formalism

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recommendations! Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep04(2025)178

Abstract: We investigate the temperature dependence of the mass scale, running coupling constant, and running mass in thermal ϕ4 theory using the Imaginary Time Formalism (ITF). Employing dimensional regularization and the minimal subtraction scheme, we compute… read more here.

Keywords: thermal theory; running coupling; energy; coupling constant ... See more keywords

On the electron self-energy to three loops in QED

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recommendations! Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep11(2024)020

Abstract: We compute the electron self-energy in Quantum Electrodynamics to three loops in terms of iterated integrals over kernels of elliptic type. We make use of the differential equations method, augmented by an ϵ-factorized basis, which… read more here.

Keywords: energy; loops qed; self energy; energy three ... See more keywords

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

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recommendations! 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

Electronic band gaps corrections using total energy with DFT/LDA-½ quasi-particle approximation

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recommendations! 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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recommendations! 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

Impact of Dipole Self-Energy on Cavity-Induced Nonadiabatic Dynamics.

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recommendations! Published in 2024 at "Journal of chemical theory and computation"

DOI: 10.1021/acs.jctc.4c01454

Abstract: The coupling of matter to the quantized electromagnetic field of a plasmonic or optical cavity can be harnessed to modify and control chemical and physical properties of molecules. In optical cavities, a term known as… read more here.

Keywords: induced nonadiabatic; cavity induced; cavity; self energy ... See more keywords

Monte Carlo Second- and Third-Order Many-Body Green's Function Methods with Frequency-Dependent, Non-Diagonal Self-Energy.

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recommendations! 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

Identification of non-Fermi liquid fermionic self-energy from quantum Monte Carlo data

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recommendations! 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

Ferroelectric fatigue in layered perovskites from self-energy corrected density functional theory

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recommendations! 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

Joint beamforming design for full‐duplex wireless powered over‐the‐air computation systems with self‐energy recycling

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recommendations! Published in 2024 at "Electronics Letters"

DOI: 10.1049/ell2.13220

Abstract: For over‐the‐air computation (AirComp) systems, energy‐constrained sensors become a bottleneck to improve the performances. To address this issue, in this letter, a full‐duplex (FD) wireless powered AirComp system with self‐energy recycling is proposed, where all… read more here.

Keywords: energy; air computation; full duplex; self energy ... See more keywords