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Optimized routines for event generators in QED-PIC codes [article]

V. Volokitin, S. Bastrakov, A. Bashinov, E. Efimenko, A. Muraviev, A. Gonoskov, I. Meyerov
2020 arXiv   pre-print
(QED-PIC) algorithms.  ...  In this regard, the optimization of these routines is of great interest. In this paper, we propose and describe two modifications.  ...  The last decades saw a great progress in the development of PIC codes for plasma simulation.  ... 
arXiv:2008.10468v1 fatcat:qxslqs7cgna2rhwofg5vs7uawm

PICSAR-QED: a Monte Carlo module to simulate Strong-Field Quantum Electrodynamics in Particle-In-Cell codes for exascale architectures [article]

Luca Fedeli, Neïl Zaïm, Antonin Sainte-Marie, Maxence Thévenet, Axel Huebl, Andrew Myers, Jean-Luc Vay, Henri Vincenti
2021 arXiv   pre-print
This work presents the PICSAR-QED library, an open-source, portable implementation of a Monte Carlo module designed to provide modern PIC codes with the capability to simulate such processes, and optimized  ...  Investigating those scenarios requires state-of-the-art Particle-In-Cell (PIC) codes able to run on top high-performance computing machines and, at the same time, able to simulate strong-field QED processes  ...  Conclusions This paper presents PICSAR-QED, a Monte Carlo module to simulate strong-field QED processes in PIC codes designed for next-generation supercomputers.  ... 
arXiv:2110.00256v1 fatcat:tw74kxyhcjbkfitotu4bfuho54

Extended particle-in-cell schemes for physics in ultrastrong laser fields: Review and developments

A. Gonoskov, S. Bastrakov, E. Efimenko, A. Ilderton, M. Marklund, I. Meyerov, A. Muraviev, A. Sergeev, I. Surmin, E. Wallin
2015 Physical Review E  
Based on this, we also develop an adaptive event generator that subdivides the time step for locally resolving QED events, allowing for efficient simulation of cascades.  ...  We review common extensions of particle-in-cell (PIC) schemes which account for strong field phenomena in laser-plasma interactions.  ...  for the statistical routines, and rapidly growing demands on the time step due to a necessity in resolving QED events.  ... 
doi:10.1103/physreve.92.023305 pmid:26382544 fatcat:olmhxym4ffhgdnudxvntz3i47y

"Boiling the vacuum": in silico plasmas under extreme conditions in the laboratory and in astrophysics

Luís O. Silva
2017 EurophysicsNews  
Present day lasers in the near infrared frequency range can deliver intensities in excess of 10 23 W/cm 2 .  ...  The corresponding intensity is in the range of the most intense lasers now available. EPN 48/5&6 35 bOILING THE VAcUUM FEATURES  ...  Cruz, and everyone at the epp team at IST for discussions. Work partially supported by the European Research Council AdG2015 InPairs.  ... 
doi:10.1051/epn/2017506 fatcat:bnnwyryizrekpdp53i2nrv27uu

Laser-driven plasma pinching in e−e+ cascade

E. S. Efimenko, A. V. Bashinov, A. A. Gonoskov, S. I. Bastrakov, A. A. Muraviev, I. B. Meyerov, A. V. Kim, A. M. Sergeev
2019 Physical review. E  
The cascaded production and dynamics of electron-positron plasma in ultimately focused laser fields of extreme intensity are studied by 3D particle-in-cell simulations with the account for the relevant  ...  processes of quantum electrodynamics (QED).  ...  The next important step was done by means of 2D and 3D simulations, mostly based on particle-in-cell (PIC) codes extended with probabilistic routines for the processes of quantum electrodynamics (QED).  ... 
doi:10.1103/physreve.99.031201 fatcat:u7pngt3wyzd2bgnmu4renkon2m

Diagnostic Techniques for Particle-in-Cell Simulations of Laser-produced Gamma-rays in the Strong-field QED Regime [article]

A. H. Younis, A. Davidson, B. Hafizi, D. F. Gordon
2021 arXiv   pre-print
Such methods elucidate the dominant processes responsible for efficient laser-to-γ energy conversion, which include nonlinear Compton scattering and magneto-bremsstrahlung radiation, and provide a clear  ...  We identify regions in the plasma target of high photon energy-density and obtain an energy conversion efficiency as high as 30 full-3D simulations.  ...  The implementation of QED-PIC routines is reviewed extensively in, e.g., [7, 8, 9] and references contained therein.  ... 
arXiv:2106.16227v2 fatcat:yquowpe2vbbelivovzeszg65oq

Porting WarpX to GPU-accelerated platforms [article]

A. Myers, A. Almgren, L. D. Amorim, J. Bell, L. Fedeli, L. Ge, K. Gott, D. P. Grote, M. Hogan, A. Huebl, R. Jambunathan, R. Lehe (+11 others)
2021 arXiv   pre-print
WarpX is a general purpose electromagnetic particle-in-cell code that was originally designed to run on many-core CPU architectures.  ...  These parallel communication routines have been optimized for hybrid CPU/GPU platforms, in particular, Summit.  ...  In particular, we discuss the importance of memory management, the importance of optimizing for memory footprint as well as run time, the importance of optimizing parallel communication routines, and the  ... 
arXiv:2101.12149v2 fatcat:bldjocjryndnrgzovjvnegtbfu

Compton scattering in particle-in-cell codes [article]

F. Del Gaudio, T. Grismayer, R. A. Fonseca, L. O. Silva
2020 arXiv   pre-print
We present a Monte Carlo collisional scheme that models single Compton scattering between leptons and photons in particle-in-cell codes.  ...  It opens new opportunities for numerical investigation of plasma phenomena where a significant population of high energy photons is present in the system.  ...  Macro-particles with difference in weight In PIC codes, it is unlikely that two scattering particles possess the same weight.  ... 
arXiv:2004.11404v2 fatcat:5twzhusncra37hxgu6qqmsnwhq

Quantum radiation reaction in head-on laser-electron beam interaction

Marija Vranic, Thomas Grismayer, Ricardo A Fonseca, Luis O Silva
2016 New Journal of Physics  
The interaction is modeled with a QED-PIC code and the results are compared with those obtained with a standard PIC code with the addition of a classical radiation reaction module and with theoretical  ...  These two tendencies compete in the QED-dominated regime.  ...  The OSIRIS-QED framework accounts for the differential emission probability rate (2) in a similar fashion as other QED-PIC modules [9] [10] [11] 47] .  ... 
doi:10.1088/1367-2630/18/7/073035 fatcat:vxgi5zrrxzh3hc5hcgeyvw6bvm

Charged particle motion and radiation in strong electromagnetic fields [article]

A. Gonoskov, T. G. Blackburn, M. Marklund, S. S. Bulanov
2022 arXiv   pre-print
fields, how they are treated theoretically and in simulation, the new collective dynamics they unlock, recent experimental progress and plans, as well as possible applications for high-flux particle and  ...  In electromagnetic fields of sufficient magnitude, radiation emission dominates the particle motion and effects of nonlinear quantum electrodynamics (QED) are crucial, which triggers electron-positron  ...  , to fully 3D PIC codes with QED modules: see section III.  ... 
arXiv:2107.02161v2 fatcat:tooqjvt6tzf7hb6xfmtv7kw4xi

PIC methods in astrophysics: Simulations of relativistic jets and kinetic physics in astrophysical systems [article]

Kenichi Nishikawa, Ioana Dutan, Christoph Köhn, Yosuke Mizuno
2021 arXiv   pre-print
Currently more than 15 semi-public PIC codes are available which we discuss in this review.  ...  The Particle-In-Cell (PIC) method has been developed by Oscar Buneman, Charles Birdsall, Roger W.  ...  YM is supported by the ERC Synergy Grant 'BlackHoleCam: Imaging the Event Horizon of Black Holes' (Grant No. 610058). The work of ID has been supported by the NUCLEU project.  ... 
arXiv:2008.02105v3 fatcat:5uttdaqnrjekbemtgaxwliafua

Theory of radiative electron polarization in strong laser fields

D. Seipt, D. Del Sorbo, C. P. Ridgers, A. G. R. Thomas
2018 Physical Review A  
We find spin-dependent expressions that may be included in electromagnetic charged-particle simulation codes, such as particle-in-cell plasma simulation codes, using Monte-Carlo modules.  ...  We develop the theory by deriving a local constant crossed field approximation (LCFA) for the polarization density matrix, which is a generalization of the well known LCFA scattering rates.  ...  The LCFA polarization density matrix can serve as the basis for a spin-dependent full-scale QED laser-plasma simulation code, in analogy to the LCFA emission rates used in QED-PIC codes.  ... 
doi:10.1103/physreva.98.023417 fatcat:ip3g5sxhajcy3m6zmo7qnxn6ry

2020 roadmap on plasma accelerators

Félicie Albert, M E Couprie, Alexander Debus, Mike C Downer, Jérôme Faure, Alessandro Flacco, Leonida A Gizzi, Thomas Grismayer, Axel Huebl, Chan Joshi, M Labat, Wim P Leemans (+14 others)
2021 New Journal of Physics  
Accelerating field structures in plasma can be generated by powerful laser pulses or charged particle beams.  ...  In this New Journal of Physics 2020 Plasma Accelerator Roadmap, perspectives from experts in this field provide a summary overview of the field and insights into the research needs and developments for  ...  For the latter, the community can benefit from standardized data exchange descriptions such as openPMD [114] that can be used to combine plasma codes with beam transport, light source and QED codes.  ... 
doi:10.1088/1367-2630/abcc62 fatcat:ntbvlo45sra33clwe6twm3yguy

Workshop Report: Brightest Light Initiative (March 27-29 2019, OSA Headquarters, Washington, D.C.) [article]

Roger Falcone Farhat Beg (UC San Diego) Siegfried Glenzer Jonathan Zuegel
2020 arXiv   pre-print
Workshop attendees developed an understanding of key opportunities, as well as gaps in current technologies and capabilities, for science enabled by the highest-intensity lasers.  ...  workshop held March 27-29, 2019 in Washington, DC.  ...  QED-PIC codes are extensively used to study the interactions of high-intensity EM fields with energetic beams of charged particles, photons, and plasmas of different composition and density.  ... 
arXiv:2002.09712v2 fatcat:gzcv6ftzkrfbbblzkyc2cwjk3a

Towards an Advanced Linear International Collider [article]

ALEGRO collaboration
2019 arXiv   pre-print
, in particular for high energy physics applications.  ...  The scientific priorities of the community are described for each technique of acceleration able to achieve accelerating gradient in the GeV~range or above.  ...  every event.  ... 
arXiv:1901.10370v2 fatcat:fuvmmieuezfyblnpsm54zs2nuu
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