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dc.contributor.authorYu, P.-
dc.contributor.authorXu, X.-
dc.contributor.authorDecyk, V. K.-
dc.contributor.authorAn, W.-
dc.contributor.authorVieira, J.-
dc.contributor.authorTsung, F. S.-
dc.contributor.authorFonseca, R. A.-
dc.contributor.authorLu, W.-
dc.contributor.authorSilva, L. O.-
dc.contributor.authorMori, W. B.-
dc.descriptionWOS:000333403900007 (Nº de Acesso Web of Science)-
dc.description.abstractSimulating laser wakefield acceleration (LWFA) in a Lorentz boosted frame in which the plasma drifts towards the laser with nu(b) can speed up the simulation by factors of gamma(2)(b) = (1 nu(2)(b)/c(2))(-1). In these simulations the relativistic drifting plasma inevitably induces a high frequency numerical instability that contaminates the interesting physics. Various approaches have been proposed to mitigate this instability. One approach is to solve Maxwell equations in Fourier space (a spectral solver) as this has been shown to suppress the fastest growing modes of this instability in simple test problems using a simple low pass or "ring" or "shell" like filters in Fourier space. We describe the development of a fully parallelized, multi-dimensional, particle-in-cell code that uses a spectral solver to solve Maxwell's equations and that includes the ability to launch a laser using a moving antenna. This new EM-PIC code is called UPIC-EMMA and it is based on the components of the UCLA PIC framework (UPIC). We show that by using UPIC-EMMA, LWFA simulations in the boosted frames with arbitrary yb can be conducted without the presence of the numerical instability. We also compare the results of a few LWFA cases for several values of yb, including lab frame simulations using OSIRIS, an EM-PIC code with a finite-difference time domain (FDTD) Maxwell solver. These comparisons include cases in both linear and nonlinear regimes. We also investigate some issues associated with numerical dispersion in lab and boosted frame simulations and between FDTD and spectral solvers.por
dc.publisherAcademic Press/Elsevierpor
dc.subjectPlasma simulationpor
dc.subjectLaser wakefield acceleratorpor
dc.subjectBoosted frame simulationpor
dc.subjectSpectral solverpor
dc.subjectNumerical Cerenkov instabilitypor
dc.titleModeling of laser wakefield acceleration in Lorentz boosted frame using EM-PIC code with spectral solverpor
dc.relation.publisherversionThe definitive version is available at:
dc.journalJournal of Computational Physicspor
degois.publication.titleJournal of Computational Physicspor
Appears in Collections:CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica

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