Quantum effects with an x-ray free-electron laser |
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Authors: | Roberts C D Schmidt S M Vinnik D V |
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Institution: | Physics Division, Bldg 203, Argonne National Laboratory, Illinois 60439-4843, USA. |
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Abstract: | A quantum kinetic equation coupled with Maxwell's equation is used to estimate the laser power required at an x-ray free-electron laser (XFEL) facility to expose intrinsically quantum effects in the process of QED vacuum decay via spontaneous pair production. A 9 -TW-peak XFEL laser with photon energy of 8.3 keV could be sufficient to initiate particle accumulation and the consequent formation of a plasma of spontaneously produced pairs. The evolution of the particle number in the plasma will exhibit non-Markovian aspects of the strong-field pair production process, and the plasma's internal currents will generate an electric field whose interference with that of the laser leads to plasma oscillations. |
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