  In this paper, we explore momentum space approach to computing scalar
amplitudes in Anti-de Sitter space. We show that the algorithm derived by
Arkani-Hamed, Benincasa, and Postnikov for cosmological wavefunctions can be
straightforwardly adopted for AdS transition amplitudes in momentum space,
allowing one to bypass bulk point integrations. We demonstrate the utility of
this approach in AdS by presenting several explicit results both at tree and
loop level.

High Energy Physics - Theory;General Relativity and Quantum Cosmology