TABLE 1.

Average excitation lifetime and quantum yield for various models

	Cyanobacterial PSI		Plant PSI-LHCI supercomplex
Model	A*	B†	C‡	D§	E¶	F‖	G**
τ (ps)	31.9	32.7	49.4	51.1	51.7	52.0	60.0
Quantum yield	0.968	0.967	0.950	0.983	0.995	0.948	0.939

^*A, Monomeric cyanobacterial PSI described by an effective Hamiltonian with full Coulomb couplings for chlorophyll interactions (4).

^†B, Monomeric cyanobacterial PSI with a hybrid effective Hamiltonian (see text).

^‡C, Plant PSI with a hybrid effective Hamiltonian with spectroscopically derived site energies for Lhca chlorophylls (see Table 2). Column C values corresponding to the refined hybrid effective Hamiltonian discussed in the text are highlighted.

^§D, Same as C, but with a dissipation rate k_diss = (3 ns)⁻¹. (Models A, B, C, F, and G all employ a uniform dissipation rate of k_diss = (1 ns)⁻¹.)

^¶E, Same as C, but with k_diss = (10 ns)⁻¹.

^‖F, Plant PSI with a hybrid effective Hamiltonian with a uniform site energy assignment of 678.8 nm (same as PSI core average) for all non-conserved chlorophylls, including gap, Lhca, and linker chlorophylls.

^**G, Plant PSI with a hybrid effective Hamiltonian with a random distribution of site energies for non-conserved chlorophylls (ensemble average over 400 configurations).