rraman.getBrownianDampingSlowMod

rraman.getBrownianDampingSlowMod(t, lmbda, T=298.0)

Calculate pure electronic dephasing due to interaction with solvent using frictionally overdamped Brownian oscillator model in the high-temperature and slow-modulation limit. The real part of g(t) leads to a Gaussian broadening of the spectra, while the imaginary part leads to a solvent induced Stokes shift.

Parameters:
  • t (array) – Time axis in fs.
  • lmbda (float) – Solvent contribution to reorganization energy (cm-1).
  • T (float) – Temperature (K, default = 298 K).
Returns:

Damping term in the time domain, e^{-g(t)}.

See also

This implementation is taken from Kulinowksi, J Phys Chem 99, 9017 (1995), Eq. (11).