When: Friday, April 22nd from 11:30 AM to 12:30 PM
Where: Cabot Division Room at Mallinckrodt
What: Sangwoo is up for group meeting:
"I will talk about our recent simulation on the long-lived coherence
during the electronic energy transfer in FMO complex. Our method
utilizes molecular dynamics simulations and QM/MM to get a description
of the bath. We obtained population beating similar to the result of
Ishizaki's hierarchical equation of motion at 77K and 300K without ad
hoc parameters. The spectral density from the autocorrelation function
has realistic peaks at the chromophore's characteristic vibrational
frequency. We checked the concept of 'coherence protection by the
protein environment' by removing site-site cross correlations while
maintaining the other factors same. The effect of the decaying time of
the correlation function on the exciton dynamics was studied utilizing
first-order autoregressive processes. Also, some preliminary results
will be presented. Finally, the role of the protein environment on the
energy transfer process will be discussed."
--
Joel Yuen-Zhou
PhD candidate in Chemical Physics
Harvard University CCB,
12 Oxford St. Mailbox 107,
Cambridge, MA, USA.
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