Observation of Ultrafast Coherence Transfer and Degenerate States with Polarization-Controlled Two-Dimensional Electronic Spectroscopy.
Journal
The journal of physical chemistry. B
ISSN: 1520-5207
Titre abrégé: J Phys Chem B
Pays: United States
ID NLM: 101157530
Informations de publication
Date de publication:
22 10 2020
22 10 2020
Historique:
pubmed:
30
9
2020
medline:
30
9
2020
entrez:
29
9
2020
Statut:
ppublish
Résumé
Optical spectroscopy is a powerful tool to interrogate quantum states of matter. We present simulation results for the cross-polarized two-dimensional electronic spectra of the light-harvesting system LH2 of purple bacteria. We identify a spectral feature on the diagonal, which we assign to ultrafast coherence transfer between degenerate states. The implication for the interpretation of previous experiments on different systems and the potential use of this feature are discussed. In particular, we foresee that this kind of feature will be useful for identifying mixed degenerate states and for identifying the origin of symmetry breaking disorder in systems like LH2. Furthermore, this may help identify both vibrational and electronic states in biological systems such as proteins and solid-state materials such as hybrid perovskites.
Identifiants
pubmed: 32990439
doi: 10.1021/acs.jpcb.0c08126
pmc: PMC7586392
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
9420-9427Références
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