1pm-2pm: (A)dS Double Copy in Twistor Space

The double copy, which relates gravity to the square of Yang–Mills theory, is usually studied in flat spacetime and is known to hold both for scattering amplitudes and for classical field configurations. In this talk, I will present a new approach to extending these results to maximally symmetric curved spacetimes. The new relations are formulated in twistor space, a complex projective space that encodes solutions to the equations of motion as holomorphic data. First, I will discuss the case of AdS₃, where a double copy structure for bulk to boundary correlators and black hole solutions naturally arises in minitwistor space. Then, I will show how in (A)dS₄ one can construct bulk correlation functions using only twistors, dual twistors, and the infinity twistor as building blocks. The relation to coordinate space arises via nested Penrose tranforms. The boundary limit of these correlators yields CFT correlators that satisfy the expected Ward identities and obey a simple double copy relation.