Testing numerical implementations of strong-field electrodynamics

Christopher Harvey, A. Ilderton, B. King

Research output: Contribution to journalArticle

43 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 languageEnglish
Article number013822
Number of pages8
JournalPhysical Review A (Atomic, Molecular, and Optical Physics)
Volume91
Issue number1
DOIs
Publication statusPublished - 13 Jan 2015

Keywords

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

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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language = "English",
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journal = "Physical Review A (Atomic, Molecular, and Optical Physics)",
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Testing numerical implementations of strong-field electrodynamics. / Harvey, Christopher; Ilderton, A.; King, B.

In: Physical Review A (Atomic, Molecular, and Optical Physics), Vol. 91, No. 1, 013822, 13.01.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Testing numerical implementations of strong-field electrodynamics

AU - Harvey, Christopher

AU - Ilderton, A.

AU - King, B.

PY - 2015/1/13

Y1 - 2015/1/13

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

M3 - Article

VL - 91

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

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

SN - 1050-2947

IS - 1

M1 - 013822

ER -