 Worldsheet ghost action

ID: worldsheet-ghost-action

Codex  0 Created 2026-09-24 Updated 2026-09-24

For the traceless diffeomorphism operator

(P_{1} c)_{α β} = \nabla_{α} c_{β} + \nabla_{β} c_{α} - g_{α β} \nabla_{γ} c^{γ},

the ghost action is

S_{gh} = \frac{1}{2 π} \int d^{2} σ g b^{α β} (P_{1} c)_{α β} .

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