Pulse shape optimization for electron-positron production in rotating fields

Fillion-Gourdeau, François; Hebenstreit, Florian; Gagnon, Denis; MacLean, Steve (2017). Pulse shape optimization for electron-positron production in rotating fields. Physical review. D - particles, fields, gravitation, and cosmology, 96(1), 016012. American Physical Society 10.1103/PhysRevD.96.016012

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We optimize the pulse shape and polarization of time-dependent electric fields to maximize the production of electron-positron pairs via strong field quantum electrodynamics processes. The pulse is parametrized in Fourier space by a B-spline polynomial basis, which results in a relatively low-dimensional parameter space while still allowing for a large number of electric field modes. The optimization is performed by using a parallel implementation of the differential evolution, one of the most efficient metaheuristic algorithms. The computational performance of the numerical method and the results on pair production are compared with a local multistart optimization algorithm. These techniques allow us to determine the pulse shape and field polarization that maximize the number of produced pairs in computationally accessible regimes.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Hebenstreit, Florian

Subjects:

500 Science > 530 Physics

ISSN:

1550-7998

Publisher:

American Physical Society

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

03 Nov 2017 08:20

Last Modified:

03 Nov 2017 08:20

Publisher DOI:

10.1103/PhysRevD.96.016012

ArXiv ID:

1704.08919

BORIS DOI:

10.7892/boris.106414

URI:

https://boris.unibe.ch/id/eprint/106414

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