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Quantum electrodynamics experiments with colliding petawatt laser pulses
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作者 I. C. E. Turcu b. shen +8 位作者 D. Neely G. Sarri K. A. Tanaka P. McKenna S. P. D. Mangles T.-P. Yu W. Luo X.-L. Zhu Y. Yin 《High Power Laser Science and Engineering》 SCIE CAS CSCD 2019年第1期74-81,共8页
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-hi... 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. 展开更多
关键词 colliding PETAWATT LASER pulses electron-positron pairs creation nonlinear Breit-Wheeler process PETAWATT LASER facilities quantum ELECTRODYNAMICS
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