Results 31 to 40 of about 2,470 (245)
Contributions to Plasma Physics, EarlyView.ABSTRACT Warm dense matter (WDM) is a complex state, where quantum effects, thermal excitations, and strong interparticle correlations coexist. Understanding its microscopic composition and medium‐induced modifications of atomic and molecular properties is essential for planetary modeling, fusion research, and high‐energy‐density experiments.
L. T. Yerimbetova +4 more
wiley +1 more source
Quenching the Hubbard Model: Comparison of Nonequilibrium Green's Function Methods
Contributions to Plasma Physics, EarlyView.ABSTRACT We benchmark nonequilibrium Green's function (NEGF) approaches for interaction quenches in the half‐filled Fermi–Hubbard model in one and two dimensions. We compare fully self‐consistent two‐time Kadanoff–Baym equations (KBE), the generalized Kadanoff–Baym ansatz (GKBA), and the recently developed NEGF‐based quantum fluctuations approach (NEGF‐
Jan‐Philip Joost +3 more
wiley +1 more source
Astronomy & AstrophysicsContext. Magnetic reconnection is an explosive process that accelerates particles to high energies in Earth’s magnetosphere, offering a unique natural laboratory to study this phenomenon. Aims.
Reisinger N., Bacchini F.
doaj +1 more source
A Model for Nonthermal Particle Acceleration in Relativistic Magnetic Reconnection
The Astrophysical Journal Letters, 2023 The past decade has seen an outstanding development of nonthermal particle acceleration in magnetic reconnection in magnetically dominated systems, with clear signatures of power-law energy distributions as a common outcome of first-principles kinetic ...
Xiaocan Li, Fan Guo, Yi-Hsin Liu, Hui Li
doaj +1 more source
Contributions to Plasma Physics, EarlyView.ABSTRACT The properties of plasmas in the low‐density limit are described by virial expansions. Analytical expressions are known for the lowest virial coefficients from Green's function approaches. Recently, accurate path‐integral Monte Carlo (PIMC) simulations were performed for the hydrogen plasma at low densities by Filinov and Bonitz (Phys. Rev.
Gerd Röpke +3 more
wiley +1 more source
Physica Scripta, 1982 Two examples of plasma phenomena of importance to astrophysics are reviewed. These are examples where astrophysical understanding hinges on further progress in plasma physics understanding. The two examples are magnetic reconnection and the collisionless interaction between a population of energetic particles and a cooler gas or plasma, in particular ...
openaire +4 more sources
Optimization of the FRi3D CME Model in EUHFORIA
Space WeatherTo study the evolution and propagation of Coronal Mass Ejections (CMEs), the advanced magnetized flux rope CME model, Flux Rope in 3D (FRi3D), has been integrated into the European Heliospheric Forecasting Information Asset (EUHFORIA).
M. Flossie +5 more
doaj +1 more source
The Uniturbulence and Alfvén Wave Solar Model (UAWSoM) in MPI-AMRVAC
Astronomy & AstrophysicsContext. The coronal heating problem and the generation of the solar wind remain fundamental challenges in solar physics. While approaches based on, e.g., the Alfvén Wave Solar Model (AWSoM) have proven highly successful in reproducing the large-scale ...
McMurdo M. +4 more
doaj +1 more source
Kinetic Contribution to the Arbitrary Order Odd Frequency Moments of the Dynamic Structure Factor
Contributions to Plasma Physics, EarlyView.ABSTRACT An exact expression is derived for the kinetic contribution to the odd (arbitrary order) frequency moments of the dynamic structure factor via a finite summation that features averages of even (all lower orders) powers of the momentum over the exact momentum distribution.
Panagiotis Tolias +2 more
wiley +1 more source
Input/Output Library for Higher-Order Computational Fluid Dynamics Data
SoftwareXThis paper introduces the Computational Fluid Dynamics High-Order Writer Library (CFD-HOWL), which performs I/O operations on solution data from high-order CFD simulations.
Rayan Dhib +3 more
doaj +1 more source