Quantum electrodynamics experiments with colliding petawatt laser pulses

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英文篇名：Quantum electrodynamics experiments with colliding petawatt laser pulses 作者：I. ; C. ; E. ; Turcu ; B. ; Shen ; D. ; Neely ; G. ; Sarri ; K. ; A. ; Tanaka ; P. ; McKenna ; S. ; P. ; D. ; Mangles ; T.-P. ; Yu ; W. ; Luo ; X.-L. ; Zhu ; Y. ; Yin 英文作者：I.C.E.Turcu;B.Shen;D.Neely;G.Sarri;K.A.Tanaka;P.McKenna;S.P.D.Mangles;T.-P.Yu;W.Luo;X.-L.Zhu;Y.Yin;STFC Rutherford Appleton Laboratory, Central Laser Facility;School of Electronic Science and Engineering, Nanjing University;ELI-NP Extreme Light Infrastructure – Nuclear Physics, National Institute of Physics and Nuclear Engineering (IFIN HH);State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences;School of Physical Science and Technology, ShanghaiTech University;Shanghai Normal University;School of Mathematics and Physics, Queen’s University Belfast;SUPA Department of Physics, University of Strathclyde;The John Adams Institute for Accelerator Science, Imperial College London;Department of Physics, National University of Defense Technology;School of Nuclear Science and Technology, University of South China;Key Laboratory for Laser Plasmas (MOE), School of Physics and Astronomy, Shanghai Jiao Tong University; 英文关键词：colliding petawatt laser pulses;;electron–positron pairs creation;;nonlinear Breit–Wheeler process;;petawatt laser facilities;;quantum electrodynamics 中文刊名：HPLS 英文刊名：高功率激光科学与工程(英文版) 机构：STFC Rutherford Appleton Laboratory, Central Laser Facility;School of Electronic Science and Engineering, Nanjing University;ELI-NP Extreme Light Infrastructure – Nuclear Physics, National Institute of Physics and Nuclear Engineering (IFIN HH);State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences;School of Physical Science and Technology, ShanghaiTech University;Shanghai Normal University;School of Mathematics and Physics, Queen’s University Belfast;SUPA Department of Physics, University of Strathclyde;The John Adams Institute for Accelerator Science, Imperial College London;Department of Physics, National University of Defense Technology;School of Nuclear Science and Technology, University of South China;Key Laboratory for Laser Plasmas (MOE), School of Physics and Astronomy, Shanghai Jiao Tong University; 出版日期：2019-03-30 出版单位：High Power Laser Science and Engineering 年：2019 期：v.7 基金：support from the National Key Research and Development Program of China(No.2016YFA0300803);; support from the Project of Shanghai HIgh repetition rate XFEL aNd Extreme light facility(SHINE);; the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB16);; support from the EPSRC,UK(Nos.EP/L013975 and EP/N022696/1);; support from Extreme Light Infrastructure Nuclear Physics(ELI-NP) Phase II;; a project co-financed by the Romanian Government and the European Union through the European Regional Development Fund;; support from EPSRC(No.EP/M018091/1);; support from EPSRC(No.EP/M018555/1);; STFC(Nos.ST/J002062/1 and ST/P002021/1);; Horizon2020 funding from the European Research Council(ERC)(No.682399);; support from the National Natural Science Foundation of China(Nos.11622547,11875319,11875091,11474360,and 11175255);; the National Key Research and Development Program of China(No.2018YFA0404802);; the Science Challenge Program(No.TZ2016005);; the Hunan Province Science and Technology Program of China(No.2017RS3042);; supported by the National Natural Science Foundation of China(Nos.11347028,11405083,and 11675075);; UK Engineering and Physics Sciences Research Council(Nos.EP/G054940/1,EP/G055165/1,and EP/G056803/1) 语种：英文; 页：HPLS201901010 页数：8 CN：01 ISSN：31-2078/O4 分类号：78-85

摘要

A new generation of high power laser facilities will provide laser pulses with extremely high powers of 10 petawatt(PW)and even 100 PW, capable of reaching intensities of 1023 W/cm~2 in the laser focus. These ultra-high intensities are nevertheless lower than the Schwinger intensity IS= 2.3×1029 W/cm~2 at which the theory of quantum electrodynamics(QED) predicts that a large part of the energy of the laser photons will be transformed to hard Gamma-ray photons and even to matter, via electron–positron pair production. To enable the investigation of this physics at the intensities achievable with the next generation of high power laser facilities, an approach involving the interaction of two colliding PW laser pulses is being adopted. Theoretical simulations predict strong QED effects with colliding laser pulses of 10 PW focused to intensities 10~(22) W/cm~2.
        A new generation of high power laser facilities will provide laser pulses with extremely high powers of 10 petawatt(PW)and even 100 PW, capable of reaching intensities of 1023 W/cm~2 in the laser focus. These ultra-high intensities are nevertheless lower than the Schwinger intensity IS= 2.3×1029 W/cm~2 at which the theory of quantum electrodynamics(QED) predicts that a large part of the energy of the laser photons will be transformed to hard Gamma-ray photons and even to matter, via electron–positron pair production. To enable the investigation of this physics at the intensities achievable with the next generation of high power laser facilities, an approach involving the interaction of two colliding PW laser pulses is being adopted. Theoretical simulations predict strong QED effects with colliding laser pulses of 10 PW focused to intensities 10~(22) W/cm~2.

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