Stuff for the 2nd paper
Figures
The following figures must be openned with Xmgr. All the data sets
in the figure files can be retrieved using Xmgr.
new1.fig
Comparison of the results by the TREA and the exact propogation
Eta=2, MD trajectory A, ED=EA=-10 eV
Conclusion:
The TREA appears to work for stronger coupling cases, and fail
for weaker coupling cases, within a given
period (~1 ps).
new2.fig
Comparison of the results by the TREA and the exact propogation
Eta=1, MD trajectory A, ED=EA=-10 eV
new3.fig
Maxima of |rho(i,+/-)| (i!=+,-)
for different donors and acceptors as a function of time:
Eta=1, MD trajectory A, ED=EA=-10 eV
new4.fig
Maxima of |rho(i,+/-)| (i!=+,-)
for different donors and acceptors as a function of time:
Eta=2, MD trajectory A, ED=EA=-10 eV
new5.fig
f1 and f2
when the donor and acceptor
energy level approaches and enters the conduct band,
as a function of time:
Eta=2, MD trajectory A, Met121-Lys122
new7.fig
f1 and f2
when the donor and acceptor
energy level approaches and enters the conduct band,
as a function of time:
Eta=1, MD trajectory A, Met121-Lys122
new6.fig
Bridge HOMOs and LUMOs
for different donors and acceptors. This figure shows that the
fluctuations of HOMOs and LUMOs are about 0.5 eV. (Note: These
fluctuations are much greater than an kBT.
Because they are NOT electronic energy, it is risky to relate
their magnitudes to that of an kBT. Theoretically,
kBT should be compared with the kinetic energy
of the nuclei plus the electronic energy of the system, both of
which cannot be, unfortunately, accurately treated within the framework
of our semiempirical model.)
new8.fig
Comparison of the TREA, TEEA and the exact:
121Met-122Lys, MD trajectory A, ED=
EA=-10, Eta=2.
new9.fig
Eigen wave function propogations
Psi+(t) and Psi-(t) when
ED and EA approach and enter
the conduct band, when K(i,+/-) (i!=+,-) are turned on and
off. 121Met-122Lys, MD trajectory A, Eta=2
newa.fig
Comparison of the TREA, TEEA and the exact:
121Met-123Gly, MD trajectory A, ED=
EA=-10, Eta=2.
newb.fig
Comparison of the TREA, TEEA and the exact:
121Met-123Gly, MD trajectory A, ED=
EA=-10, Eta=1.
newc.fig
Comparison of PDA(t) by
the TREA and the exact propogation:
121Met-122Lys, MD trajectory A, ED=
EA=-10, Eta=2 when ED
and EA(t) approach and enter the conduct band.
newd.fig
Comparison of PDA(t) by
the TREA and the exact propogation:
121Met-122Lys, MD trajectory A, ED=
EA=-10, Eta=1 when ED
and EA(t) approach and enter the conduct band.
newe.fig
Maxima of |rho(i,+/-)| (i!=+,-)
as a function of time: Eta=2, MD trajectory A, when
ED=EA approach and enter the conduct band.
Conclusion:
The positions of the peaks in this figure correspond to the poles of
the Green function at that time. When the donor and acceptor energies
enter the conduct band, they have plenty of chances to resonate with
the dense energy levels in the band.
newf.fig
Real and imaginary part of the eigen wave functions,
when K(i,+/-) (i!=+,-) are turned on and off, 121Met-125Leu,
Eta=1, Ed=Ea=-10 eV.
newg.fig
Real and imaginary part of the eigen wave functions,
when K(i,+/-) (i!=+,-) are turned on and off, 121Met-122Lys,
Eta=2, Ed=Ea=-10 eV.
Conclusion:
The contributions to eigen space propogation by the imaginary
couplings between the two eigenstates +,- and the others are
likely independent of the distance between donor and acceptor,
and they lead to the disagreement between the TREA and TEEA.
Because of their existence, the magnitude of propogation given
by the TEEA will never be smaller than a certain value (10-4
for Eta=2, it is dependent on the couplings)
whereas the TREA result will become smaller and smaller when the
acceptor gets further and further away from the donor. At some point,
one might never be able to derive a two-state approximation of whatsoever
kind.
newi.fig
PDA(t),
when K(i,+/-) (i!=+,-) are turned on and off, 121Met-122Lys,
Eta=2, Ed=Ea=-10 eV. Compared with the exact propogation,
the TREA result is negligible. However, the TREA result is similiar
to the superexchange contribution. When K(i,+/-) (i!=+,-) are
turned off, the noisy components get filtered off.
Conclusion:
Occupancy diffusion from the +,- eigenstates to the others is
responsible for the discrepancy between the TEEA and the TREA.
Back to the Index Page
© 2000, Qian Xie