Testing numerical implementations of strong-field electrodynamics

Christopher Harvey; A. Ilderton; B. King

doi:10.1103/PhysRevA.91.013822

Testing numerical implementations of strong-field electrodynamics

Christopher Harvey, A. Ilderton, B. King

School of Mathematics and Physics

Research output: Contribution to journal › Article › peer-review

91 Citations (Scopus)

Abstract

We test current numerical implementations of laser-matter interactions by comparison with exact analytical results. Focusing on photon emission processes, it is found that the numerics accurately reproduce analytical emission spectra in all considered regimes, except for the harmonic structures often singled out as the most significant high-intensity (multiphoton) effects. We find that this discrepancy originates in the use of the locally constant field approximation.

Original language	English
Article number	013822
Number of pages	8
Journal	Physical Review A (Atomic, Molecular, and Optical Physics)
Volume	91
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.91.013822
Publication status	Published - 13 Jan 2015

Keywords

PLANE ELECTROMAGNETIC WAVE
PAIR PRODUCTION
CONSTANT FIELD
QUANTUM PROCESSES
PHOTON-EMISSION
ELECTRIC-FIELD
LASER-PULSES
SCATTERING
PARTICLE
DIRAC

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10.1103/PhysRevA.91.013822

http://arxiv.org/abs/1409.6187

Cite this

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title = "Testing numerical implementations of strong-field electrodynamics",

abstract = "We test current numerical implementations of laser-matter interactions by comparison with exact analytical results. Focusing on photon emission processes, it is found that the numerics accurately reproduce analytical emission spectra in all considered regimes, except for the harmonic structures often singled out as the most significant high-intensity (multiphoton) effects. We find that this discrepancy originates in the use of the locally constant field approximation.",

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author = "Christopher Harvey and A. Ilderton and B. King",

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AU - Ilderton, A.

AU - King, B.

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N2 - We test current numerical implementations of laser-matter interactions by comparison with exact analytical results. Focusing on photon emission processes, it is found that the numerics accurately reproduce analytical emission spectra in all considered regimes, except for the harmonic structures often singled out as the most significant high-intensity (multiphoton) effects. We find that this discrepancy originates in the use of the locally constant field approximation.

AB - We test current numerical implementations of laser-matter interactions by comparison with exact analytical results. Focusing on photon emission processes, it is found that the numerics accurately reproduce analytical emission spectra in all considered regimes, except for the harmonic structures often singled out as the most significant high-intensity (multiphoton) effects. We find that this discrepancy originates in the use of the locally constant field approximation.

KW - PLANE ELECTROMAGNETIC WAVE

KW - PAIR PRODUCTION

KW - CONSTANT FIELD

KW - QUANTUM PROCESSES

KW - PHOTON-EMISSION

KW - ELECTRIC-FIELD

KW - LASER-PULSES

KW - SCATTERING

KW - PARTICLE

KW - DIRAC

U2 - 10.1103/PhysRevA.91.013822

DO - 10.1103/PhysRevA.91.013822

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JO - Physical Review A (Atomic, Molecular, and Optical Physics)

JF - Physical Review A (Atomic, Molecular, and Optical Physics)

IS - 1

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ER -

Testing numerical implementations of strong-field electrodynamics

Abstract

Keywords

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