Vacuum self-focussing of very intense laser beams

Details Vacuum self-focussing of very intense laser beams Vacuum self-focussing of very intense laser beams

2006-11-09

arxiv.org/abs/hep-ph/0611133v2

Phys.Rev.A75:043807,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 2 figures; discussion expanded

Scientific paper

10.1103/PhysRevA.75.043807

We argue that long-range photon-photon attraction induced by the dipole
interaction of two electron-positron loops can lead to "vacuum self-focussing"
of very intense laser beams. The focussing angle theta(F) is found to increase
with the beam intensity I as theta(F) I^(4/3); for the laser beams available at
present or in the near future, theta(F) 10^(-10)--10^(-7).

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