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Science & ResearchAug 11, 2026

Spin Rotatory Strength as the Equilibrium Observable for Chiral-Induced Spin Selectivity

We identify the spin rotatory strength---a chirality-odd, finite-frequency spin--dipole cross response---as the equilibrium observable for chiral-induced spin selectivity.

We identify the spin rotatory strength---a chirality-odd, finite-frequency spin--dipole cross response---as the equilibrium observable for chiral-induced spin selectivity. Time-reversal symmetry forces the static response to vanish, while nonzero SU(2) Wilson-loop flux is an…

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