Quantum electrodynamics in the strong pulsed laser fields

• Дата: 2013
• Автор: Roshchupkin, S.P.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2013
• Назва видання: Вопросы атомной науки и техники
• Теми: Квантово-полевые и групповые подходы теоретической физики. Семинар памяти Петра Ивановича Фомина
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/111866
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Quantum electrodynamics in the strong pulsed laser fields / S.P. Roshchupkin // Вопросы атомной науки и техники. — 2013. — № 3. — С. 48-52. — Бібліогр.: 5 назв. — англ.

The some results on the resonant processes of quantum electrodynamics (QED) proceeding in the strong pulsed light fields, realized in modern powerful pulsed lasers is presented. The appearance of resonances in a laser field is one of the fundamental problems of QED in electromagnetic fields. Following QED processes of the second order in the fine structure constant in the pulsed laser field are considered: resonant spontaneous bremsstrahlung by an electron scattered by a nucleus, resonant photocreation of electron{positron pairs on a nucleus, and resonant scattering of a lepton by a lepton. The resonant peak's altitude and width are defined by the external pulsed wave properties. It is demonstrated that the resonant cross sections may be several orders of magnitude greater than the corresponding cross sections in the absence of an external field. Results obtained may be experimentally verified, for example, by the scientific facilities at the SLAC National Accelerator Laboratory and FAIR (Facility for Antiproton and Ion Research, Darmstadt, Germany).