Extended Data Fig. 1: Electric field and vector potential of Gaussian laser pulses used for simulations.
From: Light-field control of real and virtual charge carriers
The maximum field strength is 2.3 V/nm, the pulse duration is 6 fs (intensity FWHM), the centre photon energy is 1.5 eV. a, For a CEP φCE = π/2 the electric field is antisymmetric with respect to time inversion while the vector potential is symmetric. b, For φCE = 0 the electric field is symmetric and the vector potential is antisymmetric.
