j0j0_sum_terms — j0j0_sum

Function to calculate the terms of the sum in the integrand of eq. 25 of Bindslev 1996, JATP 58, 983.

j0j0_sum_terms(
  l_values,
  p_perp,
  directions,
  k_perp,
  k_par,
  omega,
  omega_c,
  mass,
  distribution
)

Arguments

l_values	`numeric` vector of l-values at which to evaluate terms.
p_perp	`numeric` component of momentum vector perpendicular to the magnetic field.
directions	`character` vector with two spatial directions: acombination of x, y, and z. e.g xx, xy or yz.
k_perp	`numeric` length of component of wavevector perpendicular to the magnetic field.
k_par	`numeric` length of component of wavevector parallel to the magnetic field.
omega	`numeric` angular cyclotron frequency of current fluctuations.
omega_c	`numeric` particle angular cyclotron frequency (omega_c = qB/m).
mass	`numeric` particle mass in kg.
distribution	`list` with the velocity distribution.

complex