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In each panel: comparison between different components of the diffusion tensor. As red dots we show Dϕϕ, as green squares Dψψ, and as blue trianglesDϕψ. Bottom: Equilibrium probability distribution of the corresponding angle. Top left: Component as a function of ϕ, with ψ = 125°. Top right: With a fixed ψ = − 65°. Bottom: With a fixed ψ = 125° as a function of ϕ. The error bars are smaller than the size of the symbols.
