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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10284705%21RIV15-MSM-11320___
rdf:type
n12:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1021/jz402468c
dcterms: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.
dcterms: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
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
skos:notation
RIV/00216208:11320/14:10284705!RIV15-MSM-11320___
n3:aktivita
n17:S n17:P n17:I
n3:aktivity
I, P(GAP205/10/0989), S
n3:cisloPeriodika
3
n3:dodaniDat
n4:2015
n3:domaciTvurceVysledku
n14:2425769 n14:8171866
n3:druhVysledku
n13:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
11812
n3:idVysledku
RIV/00216208:11320/14:10284705
n3:jazykVysledku
n20:eng
n3:klicovaSlova
systems; spectroscopy; energy-transfer; quantum coherence; vibrational coherences; light-harvesting complexes
n3:klicoveSlovo
n6:spectroscopy n6:energy-transfer n6:vibrational%20coherences n6:quantum%20coherence n6:systems n6:light-harvesting%20complexes
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[CB87233C135F]
n3:nazevZdroje
Journal of Physical Chemistry Letters
n3:obor
n18:BE
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n10:GAP205%2F10%2F0989
n3:rokUplatneniVysledku
n4:2014
n3:svazekPeriodika
5
n3:tvurceVysledku
Perlík, Václav Lincoln, Craig Šanda, František Hauer, Juergen
n3:wos
000331153600001
s:issn
1948-7185
s:numberOfPages
4
n19:doi
10.1021/jz402468c
n15:organizacniJednotka
11320