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Ульрик Уггерхёй снова проявился

Напоминает об идее использования кристалла как источника интенсивного поля.

Testing strong-field QED close to the fully non-perturbative regime using aligned crystals: https://arxiv.org/abs/1911.04749

Processes occurring in the strong-field regime of QED are characterized by background electromagnetic fields of the order of the critical field F_{cr} = m^2 c^3 / ℏ|e| in the rest frame of participating charges. It has been conjectured that if in their rest frame electrons/positrons experience field strengths of the order of F_{cr} / α^{3/2} ≈ 1600 F_{cr}, with α ≈ 1/137 being the fine-structure constant, their effective coupling with radiation becomes of the order of unity. Here we show that channeling radiation by ultrarelativistic electrons with energies of the order of a few TeV on thin tungsten crystals allows to test the predictions of QED close to the fully non-perturbative regime by measuring the angularly resolved single photon intensity spectrum. The proposed setup features the unique characteristics that essentially all electrons 1) undergo at most a single photon emission and 2) experience at the moment of emission and in the angular region of interest the maximum allowed value of the field strength, which at 2TeV exceeds Fcr by more than two orders of magnitudes in the rest frame of the electron.
Comments: 5 pages, 3 figures
Tags: Мегаучебник или Что я читал и похвалил, наука, разгребая arXiv'ы
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