Phys. Rev. Lett. 102, 080402 (2009) [4 pages]Pair Production in Laser Fields Oscillating in Space and TimeReceived 22 October 2008; published 24 February 2009 The production of electron-positron pairs from vacuum by counterpropagating laser beams of linear polarization is calculated. In contrast with the usual approximate approach, the spatial dependence and magnetic component of the laser field are taken into account. We show that the latter strongly affects the creation process at high laser frequency: the production probability is reduced, the kinematics is fundamentally modified, the resonant Rabi-oscillation pattern is distorted, and the resonance positions are shifted, multiplied, and split. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.080402
DOI:
10.1103/PhysRevLett.102.080402
PACS:
12.20.Ds, 42.50.Hz, 42.55.Vc
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