Results 11 to 20 of about 1,211,974 (260)

Counterfactual Causality from First Principles? [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
In this position paper we discuss three main shortcomings of existing approaches to counterfactual causality from the computer science perspective, and sketch lines of work to try and overcome these issues: (1) causality definitions should be driven by a
Gregor Gössler   +2 more
doaj   +5 more sources

Time-Dependent Magnons from First Principles [PDF]

open access: yes, 2020
We propose an efficient and non-perturbative scheme to compute magnetic excitations for extended systems employing the framework of time-dependent density functional theory.
Eich, F., Rubio, A., Tancogne-Dejean, N.
core   +1 more source

First Principles Study on Li-doped and Li,O-codoped AlN

open access: yesMedžiagotyra, 2019
This paper focuses on the detailed investigation of the structural and electronic properties of wurtzite AlN crystals doped by Li with and without oxygen with the first principles calculation.
Honglei WU   +5 more
doaj   +1 more source

First-principles calculations to investigate structural, elastic, electronic and thermodynamic properties of NbCoSn and VRhSn Half-Heusler compounds

open access: yesResults in Physics, 2022
In this study, we investigated the structural, elastic, electronic, and thermodynamic properties of NbCoSn and VRhSn HH compounds using the first-principles calculations as implemented in the density functional theory (DFT).
Job W. Wafula   +2 more
doaj   +1 more source

A First-Principles Study of Zinc Oxide Honeycomb Structures [PDF]

open access: yes, 2009
We present a first-principles study of the atomic, electronic, and magnetic properties of two-dimensional (2D), single and bilayer ZnO in honeycomb structure and its armchair and zigzag nanoribbons.
E. Bekaroglu   +6 more
core   +2 more sources

Electronic and geometric stability of double titanium-doped silicon clusters

open access: yesMaterials Research Express, 2020
We performed the genetic algorithm (GA) incorporated with density functional theory (DFT) calculations to investigate the atomic and electronic properties of a series of Ti _2 Si _n (n = 3 = –24) clusters.
Bingwen Zhang   +3 more
doaj   +1 more source

Intrinsic properties and dopability effects on the thermoelectric performance of binary Sn chalcogenides from first principles

open access: yesFrontiers in Electronic Materials, 2022
High-performance thermoelectric (TE) materials rely on semiconductors with suitable intrinsic properties for which carrier concentrations can be controlled and optimized.
Ferdaushi Alam Bipasha   +4 more
doaj   +1 more source

Quantum Field Theory from First Principles [PDF]

open access: yes, 2000
When quantum fields are studied on manifolds with boundary, the corresponding one-loop quantum theory for bosonic gauge fields with linear covariant gauges needs the assignment of suitable boundary conditions for elliptic differential operators of ...
Esposito, Giampiero
core   +3 more sources

Spin and Statistics and First Principles [PDF]

open access: yes, 2009
It was shown in the early Seventies that, in Local Quantum Theory (that is the most general formulation of Quantum Field Theory, if we leave out only the unknown scenario of Quantum Gravity) the notion of Statistics can be grounded solely on the local ...
AL Moncayo   +24 more
core   +3 more sources

Lattice thermal conductivity of β-, α- and κ- Ga2O3: a first-principles computational study

open access: yesApplied Physics Express, 2023
The thermal transport properties of Ga _2 O _3 in different phases remain inadequately explored. We employ first-principles calculations and the phonon Boltzmann equation to systematically study the lattice thermal conductivity of β -, α - and κ -Ga _2 O
Jinfeng Yang   +5 more
doaj   +1 more source

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