David Skinner: Celestial Holography and Self-Dual Einstein Gravity (April 17, 2025)
Автор: Simons Foundation
Загружено: 2025-04-28
Просмотров: 455
Описание: To date, top-down constructions of celestial holography involve a combination of twisted holography and twistor theory. In the original (Burns) model of Costello-Paquette-Sharma, the gravitational theory is the B model living in a suitable twistor space, and corresponds to a theory of self-dual conformal gravity in four dimensions. David Skinner will discuss a variant of this model coming from a CY 5-fold that admits a K3 fibration over twistor space and yields a theory of self-dual Einstein gravity in four dimensions. This is based on work in progress with Roland Bittleston, Kevin Costello, and Atul Sharma.
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