Maldacena's consistency relation (eqs. 4.5–4.7): $\langle\zeta\zeta\zeta\rangle/(P_\zeta(k_1)P_\zeta(k_3))\to-n_s$ as $k_3\to0$

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Maldacena's consistency relation (eqs. 4.5–4.7): $\langle\zeta\zeta\zeta\rangle/(P_\zeta(k_1)P_\zeta(k_3))\to-n_s$ as $k_3\to0$ · Prove2Me