Possibility of prolific pair production with high-power lasers.

Prolific electron-positron pair production is possible at laser intensities approaching 10;{24} W cm;{-2} at a wavelength of 1 mum. An analysis of electron trajectories and interactions at the nodes (B=0) of two counterpropagating, circularly polarized laser beams shows that a cascade of gamma rays and pairs develops. The geometry is generalized qualitatively to linear polarization and laser beams incident on a solid target.

[1]  C. Keitel,et al.  High-energy, nuclear, and QED processes in strong laser fields , 2008 .

[2]  A. Piazza Exact Solution of the Landau-Lifshitz Equation in a Plane Wave , 2008, 0801.1751.

[3]  S. V. Bulanov,et al.  Nonlinear Thomson scattering with strong radiation damping , 2006, Journal of Plasma Physics.

[4]  D. Lai,et al.  Physics of strongly magnetized neutron stars , 2006, astro-ph/0606674.

[5]  Christoph H. Keitel,et al.  Relativistic high-power laser–matter interactions , 2006 .

[6]  C. Keitel,et al.  Light diffraction by a strong standing electromagnetic wave. , 2006, Physical review letters.

[7]  Felix Aharonian,et al.  Very High Energy Cosmic Gamma Radiation: A Crucial Window on the Extreme Universe , 2004 .

[8]  Richard Kowalczyk,et al.  Nonlinear Thomson scattering: A tutorial , 2003 .

[9]  J. Moody,et al.  High energy electrons, nuclear phenomena and heating in petawatt laser-solid experiments , 1999 .

[10]  Scott C. Wilks,et al.  Pair Production by Ultraintense Lasers , 1998 .

[11]  Adrian C. Melissinos,et al.  Positron Production in Multiphoton Light-by-Light Scattering , 1997 .

[12]  Physical Review Letters 63 , 1989 .

[13]  L. Urrutia Vacuum polarization in parallel homogeneous electric and magnetic fields , 1978 .

[14]  I. Lerche,et al.  Theory of pair production in strong electric and magnetic fields and its applicability to pulsars , 1976 .

[15]  C. Itzykson,et al.  Pair production in vacuum by an alternating field , 1970 .

[16]  T. Erber,et al.  High-Energy Electromagnetic Conversion Processes in Intense Magnetic Fields , 1966 .

[17]  E. M. Lifshitz,et al.  Classical theory of fields , 1952 .

[18]  Julian Schwinger,et al.  On gauge invariance and vacuum polarization , 1951 .