Report
Split representation in celestial holography
| العنوان: | Split representation in celestial holography |
|---|---|
| المؤلفون: | Chang, Chi-Ming, Liu, Reiko, Ma, Wen-Jie |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Theory |
| الوصف: | We develop a split representation for celestial amplitudes in celestial holography, by cutting internal lines of Feynman diagrams in Minkowski space. More explicitly, the bulk-to-bulk propagators associated with the internal lines are expressed as a product of two boundary-to-bulk propagators with a coinciding boundary point integrated over the celestial sphere. Applying this split representation, we compute the conformal partial wave and conformal block expansions of celestial four-point functions of massless scalars and photons on the Euclidean celestial sphere. In the $t$-channel massless scalar amplitude, we observe novel intermediate exchanges of staggered modules in the conformal block expansion. Comment: 76 pages |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2311.08736 |
| رقم الانضمام: | edsarx.2311.08736 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |