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- W4320351337 abstract "Coherence maps (CMs) in multidimensional spectroscopy report total interference of all quantum coherent pathways. Detailed understanding of how this interference manifests spectroscopically is vital for deciphering mechanistic origins of impulsively generated wavepackets, but currently lacking. Here we explain the origin of recently reported diagonal node-like features in CMs of bacteriochlorophyll monomers and photosynthetic reaction centers (RCs), where the apparent resemblance in the two disparate systems was reportedly perplexing. We show that both spectroscopic signatures have distinct physical origins. Node-like lineshapes in monomers arise from unique phase twists caused by destructive interference between ground and excited state vibrational coherences. In contrast, nodal lines in RCs are explained by coherence transfer of vibrational wavepackets which do not participate in the ultrafast energy transfer and their destructive interference with ground state pathways. Our results resolve recent spectroscopic observations and illustrate new mechanistic insights gained from understanding interference effects in multidimensional spectroscopy." @default.
- W4320351337 created "2023-02-13" @default.
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- W4320351337 date "2023-02-01" @default.
- W4320351337 modified "2023-09-30" @default.
- W4320351337 title "Coherence Transfer and Destructive Interference in Two-Dimensional Coherence Maps" @default.
- W4320351337 doi "https://doi.org/10.48550/arxiv.2302.00276" @default.
- W4320351337 hasPublicationYear "2023" @default.
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