Electron-Positron Pair Production in a Strong Laser Field Enhanced by an Assisted High Frequency Weak Field |
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Authors: | Abdukerim Nuriman XIE Bai-Song LI Zi-Liang Dulat Sayipjamal |
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Affiliation: | 1. School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China;2. College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China |
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Abstract: | Electron-positron pair production in a strong laser field enhanced by an assisted high frequency weak field is investigated by solving the quantum Vlasov equation.The average and residual pair number densities are obtained for sinusoid electric field and it is found that the high frequency assisted weak field will enhance pair production significantly.There exists an optimal frequency of assisted field that makes the pair production number density get a maximum one,which is a few orders of higher than that without assisted field.We also discuss the other possible assisted fields. |
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Keywords: | electron-positron pair production quantum Vlasov equation dynamically assisted field |
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