3 papers
hep-th2026
Cosmological Correlators Using Tensor Networks
Ujjwal Basumatary, Aninda Sinha, Xinan Zhou
We develop a nonperturbative tensor-network framework for computing cosmological correlators in de Sitter space and use it to test the proposal that suitably defined in-in correlat…
hep-th2025
Notes on flat-space limit of holographic defect correlators in position space
Qi Chen, Yi-Xiao Tao, Xinan Zhou
We study the large AdS radius limit of correlation functions in holographic defect CFTs. For two-point functions of operators inserted away from the defect, we derive a position sp…
hep-th2025
Dissecting supergraviton six-point function with lightcone limits and chiral algebra
Vasco Goncalves, Maria Nocchi, Xinan Zhou
We develop a bootstrap strategy to obtain the six-point function of supergravitons in from symmetry constraints and consistency conditions. Compared to previous b…