Zobrazeno 1 - 10
of 5 768
pro vyhledávání: '"plasma simulations"'
Autor:
Ho, Andrew, Vogman, Genia
Kinetic plasma simulations solve the Vlasov-Poisson or Vlasov-Maxwell equations to evolve scalar-variable distribution functions in position-velocity phase space and vector-variable electromagnetic fields in physical space. The computational cost of
Externí odkaz:
http://arxiv.org/abs/2410.12155
Autor:
Nättilä, Joonas
Publikováno v:
Nattila, J. Nat Commun 15, 7026 (2024)
Stellar-mass black holes in x-ray binary systems are powered by mass transfer from a companion star. The accreted gas forms an accretion disk around the black hole and emits x-ray radiation in two distinct modes: hard and soft state. The origin of th
Externí odkaz:
http://arxiv.org/abs/2408.08161
Autor:
Panova, Elena, Volokitin, Valentin, Bashinov, Aleksei, Muraviev, Alexander, Efimenko, Evgeny, Meyerov, Iosif
Numerical simulation of strong-field quantum electrodynamics (SFQED) processes is an essential step towards current and future high-intensity laser experiments. The complexity of SFQED phenomena and their stochastic nature make them extremely computa
Externí odkaz:
http://arxiv.org/abs/2409.17299
Autor:
Campbell, Thomas, Svensson, Pontus, Larder, Brett, Plummer, Daniel, Vinko, Sam M., Gregori, Gianluca
We present a novel scheme for modelling quantum plasmas in the warm dense matter (WDM) regime via a hybrid smoothed particle hydrodynamic - molecular dynamic treatment, here referred to as 'Bohm SPH'. This treatment is founded upon Bohm's interpretat
Externí odkaz:
http://arxiv.org/abs/2408.03693
Autor:
Jubin, Sierra, Powis, Andrew Tasman, Villafana, Willca, Sydorenko, Dmytro, Rauf, Shahid, Khrabrov, Alexander V., Sarwar, Salman, Kaganovich, Igor D.
The process of numerical thermalization in particle-in-cell (PIC) simulations has been studied extensively. It is analogous to Coulomb collisions in real plasmas, causing particle velocity distributions (VDFs) to evolve towards a Maxwellian as macrop
Externí odkaz:
http://arxiv.org/abs/2401.06057
Akademický článek
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Autor:
Mbarek, Rostom, Philippov, Alexander, Chernoglazov, Alexander, Levinson, Amir, Mushotzky, Richard
Publikováno v:
Phys. Rev. D 109, L101306 Published 24 May 2024
We examine properties of accelerated protons potentially responsible for the neutrino excess observed in the direction of NGC 1068, using constraints from kinetic Particle-in-Cell (PIC) simulations. We find that i) coronal X-rays and Optical/Ultra-Vi
Externí odkaz:
http://arxiv.org/abs/2310.15222
Low density plasmas are characterized by a large scale separation between the gyromotion of particles around local magnetic fields and the macroscopic scales of the system, often making global kinetic simulations computationally intractable. The guid
Externí odkaz:
http://arxiv.org/abs/2309.07231