Enhanced pair creation by an oscillating potential with multiple well-barrier structures in space - INSPIRE

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Enhanced pair creation by an oscillating potential with multiple well-barrier structures in space

Oct 17, 2018

6 pages

Published in:

Phys.Rev.A 98 (2018) 4, 043424

Published: Oct 17, 2018

DOI:

10.1103/PhysRevA.98.043424

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Abstract: (APS)

Electron-positron pair creation from a vacuum in an oscillating potential with multiple well-barrier structures is investigated by the computational quantum field theory. For the potential with a well-barrier structure, it is found that when the distance between the well and barrier is large, the pair yield is only double of that in a single oscillating potential well. However, when the distance is small, the pair yield is much larger than the sum of the pairs created individually by the tunneling mechanism and by the photon absorption regime. This result is also analyzed by the energy spectrum of created pairs. Furthermore, for the potential with multiple well-barrier structures, it is discovered that pair creation process can be further enhanced by increasing the number of well-barrier structures. This designed field may be used to create observable pairs in the laboratory.

Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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