Vibrational wave packet induced oscillations in two-dimensional electronic spectra. II. Theory

Abstract

We present a theory of vibrational modulation of two-dimensional coherent Fourier transformed electronic spectra. Based on an expansion of the system's energy gap correlation function in terms of Huang-Rhys factors, we explain the time-dependent oscillatory behavior of the absorptive and dispersive parts of two-dimensional spectra of a two-level electronic system, weakly coupled to intramolecular vibrational modes.

Keywords

• Vibrational wave packet
• two-dimensional electronic spectrum.