About: Distinguishing Electronic and Vibronic Coherence in 2D Spectra by Their Temperature Dependence

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About: Distinguishing Electronic and Vibronic Coherence in 2D Spectra by Their Temperature Dependence Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1021/jz402468c
Description	Long-lived oscillations in 2D spectra of chlorophylls are at the heart of an ongoing debate. Their physical origin is either a multipigment effect, such as excitonic coherence, or localized vibrations. We show how relative phase differences of diagonal- and cross-peak oscillations can distinguish between electronic and vibrational (vibronic) effects. While direct discrimination between the two scenarios is obscured when peaks overlap, their sensitivity to temperature provides a stronger argument. We show that vibrational (vibronic) oscillations change relative phase with temperature, while electronic oscillations are only weakly dependent. This highlights that studies of relative phase difference as a function of temperature provide a clear and easily accessible method to distinguish between vibrational and electronic coherences. Long-lived oscillations in 2D spectra of chlorophylls are at the heart of an ongoing debate. Their physical origin is either a multipigment effect, such as excitonic coherence, or localized vibrations. We show how relative phase differences of diagonal- and cross-peak oscillations can distinguish between electronic and vibrational (vibronic) effects. While direct discrimination between the two scenarios is obscured when peaks overlap, their sensitivity to temperature provides a stronger argument. We show that vibrational (vibronic) oscillations change relative phase with temperature, while electronic oscillations are only weakly dependent. This highlights that studies of relative phase difference as a function of temperature provide a clear and easily accessible method to distinguish between vibrational and electronic coherences. (en)
Title	Distinguishing Electronic and Vibronic Coherence in 2D Spectra by Their Temperature Dependence Distinguishing Electronic and Vibronic Coherence in 2D Spectra by Their Temperature Dependence (en)
skos:prefLabel	Distinguishing Electronic and Vibronic Coherence in 2D Spectra by Their Temperature Dependence Distinguishing Electronic and Vibronic Coherence in 2D Spectra by Their Temperature Dependence (en)
skos:notation	RIV/00216208:11320/14:10284705!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GAP205/10/0989), S
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Perlík, Václav Šanda, František
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	11812
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10284705
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	systems; spectroscopy; energy-transfer; quantum coherence; vibrational coherences; light-harvesting complexes (en)
http://linked.open.../riv/klicoveSlovo	vibrational coherences light-harvesting complexes spectroscopy systems energy-transfer quantum coherence
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[CB87233C135F]
http://linked.open...i/riv/nazevZdroje	Journal of Physical Chemistry Letters
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Molecular Complexes as Open Quantum Systems: Delocalization, Decoherence, Dissipation, Photo-induced dynamics and Ultrafast Spectroscopy
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	5
http://linked.open...iv/tvurceVysledku	Hauer, Juergen Šanda, František Perlík, Václav Lincoln, Craig
http://linked.open...ain/vavai/riv/wos	000331153600001
issn	1948-7185
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1021/jz402468c
http://localhost/t...ganizacniJednotka	11320

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