FRET efficiency eta(R) = 1/(1+(R/R_0)^6); eta(R_0) = 1/2 (Forster-radius half-efficiency)

Layer 1 — Physicsin the quantum-biology subtree

FRET crossover at the Forster radius. From framework F7 (dipole-dipole 1/R^6 Laurent-expansion), the energy-transfer rate k_FRET = (1/tau_D)*(R_0/R)^6 and the transfer efficiency eta = k_FRET/(k_FRET + 1/tau_D) = 1/(1+(R/R_0)^6). At the…

Related concepts

Forster dipole-dipole coupling: V_dd(R) ~ kappa^2/R^3; rate ~ kappa^4/R^6 via Laurent expansion

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