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hep-th2026
Complex Geodesics in the Nariai Geometry
Lars Aalsma, Mir Mehedi Faruk
We study two-point correlation functions of heavy scalar fields in the Nariai geometry. Utilizing the heat kernel formalism, we obtain this result from a geodesic approximation to…
hep-th2026
Time Dependent String Compactification: Towards Bouncing Cosmology
Mir Mehedi Faruk
We study the Null Energy Condition (NEC) arising from the Virasoro constraint on the string worldsheet. We then analyze how the NEC in the external spacetime directions emerges und…