Double-quantum four wave mixing signals contain signatures of exciton correlations and can distinguish between couplings arising from transition- and excited-state charge densities. The former (resonant couplings) determine single-exciton properties, while the latter affect the two-exciton manifold.
CITATION STYLE
Abramavicius, D., & Mukamel, S. (2009). Double-Quantum Coherence Spectroscopy of Chromophore Aggregates. In Springer Series in Chemical Physics (Vol. 92, pp. 412–414). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-540-95946-5_133
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