Energy absorption in the laser-QED regime

Abstract A theoretical and numerical investigation of non-ponderomotive absorption at laser intensities relevant to quantum electrodynamics is presented. It is predicted that there is a regime change in the dependence of fast electron energy on incident laser energy that coincides with the onset of...

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Autores principales:	Alex F. Savin, Aimee J. Ross, Ramy Aboushelbaya, Marko W. Mayr, Ben Spiers, Robin H.-W. Wang, Peter A. Norreys
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c939aeaa53964cab9564efa2c269f9e4
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spelling	oai:doaj.org-article:c939aeaa53964cab9564efa2c269f9e42021-12-02T15:08:31ZEnergy absorption in the laser-QED regime10.1038/s41598-019-45536-x2045-2322https://doaj.org/article/c939aeaa53964cab9564efa2c269f9e42019-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-45536-xhttps://doaj.org/toc/2045-2322Abstract A theoretical and numerical investigation of non-ponderomotive absorption at laser intensities relevant to quantum electrodynamics is presented. It is predicted that there is a regime change in the dependence of fast electron energy on incident laser energy that coincides with the onset of pair production via the Breit-Wheeler process. This prediction is numerically verified via an extensive campaign of QED-inclusive particle-in-cell simulations. The dramatic nature of the power law shift leads to the conclusion that this process is a candidate for an unambiguous signature that future experiments on multi-petawatt laser facilities have truly entered the QED regime.Alex F. SavinAimee J. RossRamy AboushelbayaMarko W. MayrBen SpiersRobin H.-W. WangPeter A. NorreysNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alex F. Savin Aimee J. Ross Ramy Aboushelbaya Marko W. Mayr Ben Spiers Robin H.-W. Wang Peter A. Norreys Energy absorption in the laser-QED regime
description	Abstract A theoretical and numerical investigation of non-ponderomotive absorption at laser intensities relevant to quantum electrodynamics is presented. It is predicted that there is a regime change in the dependence of fast electron energy on incident laser energy that coincides with the onset of pair production via the Breit-Wheeler process. This prediction is numerically verified via an extensive campaign of QED-inclusive particle-in-cell simulations. The dramatic nature of the power law shift leads to the conclusion that this process is a candidate for an unambiguous signature that future experiments on multi-petawatt laser facilities have truly entered the QED regime.
format	article
author	Alex F. Savin Aimee J. Ross Ramy Aboushelbaya Marko W. Mayr Ben Spiers Robin H.-W. Wang Peter A. Norreys
author_facet	Alex F. Savin Aimee J. Ross Ramy Aboushelbaya Marko W. Mayr Ben Spiers Robin H.-W. Wang Peter A. Norreys
author_sort	Alex F. Savin
title	Energy absorption in the laser-QED regime
title_short	Energy absorption in the laser-QED regime
title_full	Energy absorption in the laser-QED regime
title_fullStr	Energy absorption in the laser-QED regime
title_full_unstemmed	Energy absorption in the laser-QED regime
title_sort	energy absorption in the laser-qed regime
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/c939aeaa53964cab9564efa2c269f9e4
work_keys_str_mv	AT alexfsavin energyabsorptioninthelaserqedregime AT aimeejross energyabsorptioninthelaserqedregime AT ramyaboushelbaya energyabsorptioninthelaserqedregime AT markowmayr energyabsorptioninthelaserqedregime AT benspiers energyabsorptioninthelaserqedregime AT robinhwwang energyabsorptioninthelaserqedregime AT peteranorreys energyabsorptioninthelaserqedregime
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Energy absorption in the laser-QED regime

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