کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5495034 | 1528790 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strong-field Breit-Wheeler pair production in two consecutive laser pulses with variable time delay
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Strong-field Breit-Wheeler pair production in two consecutive laser pulses with variable time delay Strong-field Breit-Wheeler pair production in two consecutive laser pulses with variable time delay](/preview/png/5495034.png)
چکیده انگلیسی
Photoproduction of electron-positron pairs by the strong-field Breit-Wheeler process in an intense laser field is studied. The laser field is assumed to consist of two consecutive short pulses, with a variable time delay in between. By numerical calculations within the framework of scalar quantum electrodynamics, we demonstrate that the time delay exerts a strong impact on the pair-creation probability. For the case when both pulses are identical, the effect is traced back to the relative quantum phase of the interfering S-matrix amplitudes and explained within a simplified analytical model. Conversely, when the two laser pulses differ from each other, the pair-creation probability depends not only on the time delay but, in general, also on the temporal order of the pulses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 766, 10 March 2017, Pages 71-76
Journal: Physics Letters B - Volume 766, 10 March 2017, Pages 71-76
نویسندگان
Martin J.A. Jansen, Carsten Müller,