Origin of long-lived quantum coherence and excitation dynamics in pigment-protein complexes.
Origin of long-lived quantum coherence and excitation dynamics in pigment-protein complexes.
复制标题
DOI:
10.1038/srep37629
复制
发表时间:
2016-11-23
影响因子:
4.6
通讯作者:
Wang J
中科院分区:
文献类型:
--
作者:
Zhang Z;Wang J
We explore the mechanism for the long-lived quantum coherence by considering the discrete phonon modes: these vibrational modes effectively weaken the exciton-environment interaction, due to the new composite (polaron) formed by excitons and vibrons. This subsequently demonstrates the role of vibrational coherence which greatly contributes to long-lived feature of the excitonic coherence that has been observed in femtosecond experiments. The estimation of the timescale of coherence elongated by vibrational modes is given in an analytical manner. To test the validity of our theory, we study the pigment-protein complex in detail by exploring the energy transfer and coherence dynamics. The ground-state vibrational coherence generated by incoherent radiations is shown to be long-survived and is demonstrated to be significant in promoting the excitation energy transfer. This is attributed to the nonequilibriumness of the system caused by the detailed-balance-breaking, which funnels the downhill migration of excitons.
登录
查看更多内容
影响因子:
4.4
作者:
LOGAN, DE;WOLYNES, PG
通讯作者:
WOLYNES, PG
影响因子:
16.6
作者:
O'Reilly, Edward J.;Olaya-Castro, Alexandra
通讯作者:
Olaya-Castro, Alexandra
DOI:
10.1073/pnas.1212666110
发表时间:
2013-02-19
影响因子:
11.1
作者:
Dorfman, Konstantin E.;Voronine, Dmitri V.;Scully, Marlan O.
通讯作者:
Scully, Marlan O.
DOI:
10.1098/rspa.1950.0184
发表时间:
1950-01-01
影响因子:
--
作者:
HUANG, K;RHYS, A
通讯作者:
RHYS, A
DOI:
10.1073/pnas.1005484107
发表时间:
2010-07-20
影响因子:
11.1
作者:
Panitchayangkoon, Gitt;Hayes, Dugan;Engel, Gregory S.
通讯作者:
Engel, Gregory S.