4 papers · 1 filter
4d CFT Correlators from Ambitwistors
Mariana Carrillo González, Théo Keseman
We develop an ambitwistor-space formulation of conserved spinning correlators in four-dimensional CFTs. We show that conformal symmetry and conservation are trivialised by the ambi…
Spinning Boundary Correlators from (A)dS Twistors
Mariana Carrillo González, Théo Keseman
We develop a twistor-space framework to compute boundary correlators via a boundary limit of nested Penrose transforms in (A)dS. Starting from correlators of (anti-)self-dual b…
Double Copy in AdS3 from Minitwistor Space
Cameron Beetar, Mariana Carrillo González, Sumer Jaitly +1
The double copy relates gravitational theories to the square of gauge theories. While it is well understood in flat backgrounds, its precise realisation around curved spacetimes re…
Insights on Entanglement Entropy in Dimensional Causal Sets
Théo Keseman, Hans J. Muneesamy, Yasaman K. Yazdi
Entanglement entropy in causal sets offers a fundamentally covariant characterisation of quantum field degrees of freedom. A known result in this context is that the degrees of fre…