Dynamically assisted pair production for scalar QED by two fields
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- 作者：Zi-Liang Li (1)
Ding Lu (1)
Bai-Song Xie (1) (2)
1. Key Laboratory of Beam Technology and Materials Modification of the Ministry of Education ; and College of Nuclear Science and Technology ; Beijing Normal University ; Beijing ; 100875 ; China
2. Beijing Radiation Center ; Beijing ; 100875 ; China - 关键词：quantum Vlasov equation ; dynamically assisted pair production ; scalar QED
- 刊名：Frontiers of Physics
- 出版年：2015
- 出版时间：April 2015
- 年：2015
- 卷：10
- 期：2
- 页码：155-160
- 全文大小：270 KB
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- 刊物主题：Physics
Chinese Library of Science - 出版者：Higher Education Press, co-published with Springer-Verlag GmbH
- ISSN：2095-0470
文摘
By solving the quantum Vlasov equation, the dynamically assisted pair production for scalar quantum electrodynamics (QED) is investigated. It is verified that this mechanism still holds true for boson pair production. Two combinations of two electric fields having different time scales under various time delays are considered; it is found that the oscillations of the momentum spectrum and the number density of created bosons decrease with increasing time delay, and the latter has a maximum value when the time delay equals zero. Furthermore, the differences in vacuum pair production between bosons and fermions are also studied, and they are helpful for distinguishing the created bosons from fermions.