Description
Lecturer: Laura Donnay (SISSA)
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Introduction: why flat space holography?
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Conformal structure of flat spacetimes
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Celestial amplitudes
- Conformal primary wavefunctions
- Celestial correlators
- Example: four-point scattering
- celestial OPEs
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Current algebras for celestial CFTs
- Supertranslation current
- A 2d stress tensor
- w_{1+\infty} symmetries
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Conclusion and outlook