Abstract: (World Scientific)
We investigate non-perturbative pair production from vacuum (the Schwinger effect) in the focal region of two counter-propagating, ultra-short laser pulses with sub-cycle structure. We use the quantum kinetic formulation to calculate the momentum spectrum of created particles and show the extreme sensitivity to the laser frequency ω, the pulse length τ and the carrier-envelope absolute phase ɸ. We apply this formalism to both fermions and bosons to illustrate the influence of quantum statistics in this type of electric background field.
Note:
  • 5 pages, 2 figuers. Talk given by F.H. at the Ninth Conference on Quantum Field Theory under the Influence of External Conditions, 21-25 September 2009, Oklahoma, USA
  • Schwinger effect
  • quantum statistics
  • vacuum polarization
  • statistics: quantum
  • length: pulsed
  • laser
  • pair production
  • momentum spectrum
  • background field