Results 91 to 100 of about 147,787 (297)

$N=2^∗$ (non-)Abelian theory in the $\Omega$ background from string theory [PDF]

, 2017
We present a D-brane realisation of the Abelian and non-Abelian N = 2 ∗ theory both in five and four dimensions. We compute topological amplitudes in string theory for Ω deformed spacetime first with one and then with two parameters.
Samsonyan, Marine, Angelantonj, Carlo, Carlo Angelantonj, Ignatios Antoniadis, Antoniadis, Ignatios, Marine Samsonyan   +5 more
core   +1 more source

Relaxation terms for anomalous hydrodynamic transport in Weyl semimetals from kinetic theory

Journal of High Energy Physics
We consider as a model of Weyl semimetal thermoelectric transport a (3 + 1)-dimensional charged, relativistic and relaxed fluid with a U(1) V × U(1) A chiral anomaly.
Andrea Amoretti, Daniel K. Brattan, Luca Martinoia, Ioannis Matthaiakakis, Jonas Rongen   +4 more
doaj   +1 more source

Factorization of soft and collinear divergences in non-equilibrium quantum field theory [PDF]

Annals of Physics, 2009
Proof of factorization of soft and collinear divergences in non-equilibrium QCD may be necessary to study hadronic signatures of quark-gluon plasma at RHIC and LHC. In this paper we prove factorization of soft and collinear divergences in non-equilibrium QED by using Schwinger-Keldysh closed-time path integral formalism in the background field method ...
openaire   +3 more sources

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Non-equilibrium Quantum Field Theory and Perturbation Theory [PDF]

, 2007
The perturbation theory is studied for a non-equilibrium situation of an interacting Fermion-Boson-system.
R. Fauser, H.H. Wolter
core  

Hydrodynamization in hybrid Bjorken flow attractors

Journal of High Energy Physics
Hybrid fluid models, consisting of two sectors with more weakly and more strongly self-interacting degrees of freedom coupled consistently as in the semi-holographic framework, have been shown to exhibit an attractor surface for Bjorken flow.
Toshali Mitra, Sukrut Mondkar, Ayan Mukhopadhyay, Anton Rebhan, Alexander Soloviev   +4 more
doaj   +1 more source

Triple Junctions as Dislocation‐Like Defects: The Role of Grain Boundary Crystallography Revealed by Experiment and Atomistic Simulation

Advanced Engineering Materials, EarlyView.
Grain boundary triple junctions are an essential ingredient of the microstructure of polycrystalline materials. In this study, a triple junction is observed using atomic‐resolution scanning transmission electron microscopy and characterized. Computer simulations reveal that the junction has a dislocation character that is determined by the joining ...
Tobias Brink, Saba Saood, Peter Schweizer, Jörg Neugebauer, Gerhard Dehm   +4 more
wiley   +1 more source

Potential and Flux Field Landscape Theory of Spatially Inhomogeneous Non-Equilibrium Systems [PDF]

, 2014
In this dissertation we establish a potential and flux field landscape theory for studying the global stability and dynamics as well as the non-equilibrium thermodynamics of spatially inhomogeneous non-equilibrium dynamical systems.
Wu, Wei
core  

Kubo formulas for spin polarization in dissipative relativistic spin hydrodynamics: a first-order gradient expansion approach

Journal of High Energy Physics
We use linear response theory to derive both the non-dissipative and dissipative effects of spin polarization for massive and massless interacting spin 1/2 particles in a relativistic fluid. We list and classify all the possible contributions up to first
Matteo Buzzegoli
doaj   +1 more source

Equilibrium and Non-equilibrium Quantum Field Theory

, 1999
We concern with various aspects of equilibrium and non-equilibrium quantum field theory.
openaire   +2 more sources