5 citations · 8 across the 5 of their papers we have counts for
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Unitarity, Recursion and Soft Limits in (EA)dS through Dressing
Arhum Ansari, Deep Mazumdar, Brijesh Thakkar
Using the recently developed framework in which cosmological correlators in (E)AdS are represented as flat-space amplitudes dressed by auxiliary propagators, we show that several s…
Cosmological Cutting Rules from Flat-Space Unitarity via Dressing
Arhum Ansari, Sachin Jain, Deep Mazumdar
Using cosmological dressing rules, we uplift flat-space unitarity cuts to discontinuity relations for dS/EAdS observables. In this representation, Cutkosky delta functions map dire…
AdS Boundary Wightman functions in Twistor Space: Factorization, Conformal blocks and a Double Copy
Arhum Ansari, Sachin Jain, Dhruva K. S
We study real-time holographic four point Wightman functions involving scalars, photons, gluons and gravitons in the Poincare patch of AdS. We show that when the momenta of the…
Inflationary non-Gaussianities in alpha vacua and consistency with conformal symmetries
Arhum Ansari, Pinak Banerjee, Prateksh Dhivakar +2
We study the conformal invariance of inflationary non-Gaussianities associated with scalar fluctuations in a non-Bunch-Davies initial state, known as the -vacuum, in single-fiel…