3 papers
hep-th2025
Holographic Cosmology at Finite Time
Goncalo Araujo-Regado, Ayngaran Thavanesan, Aron C. Wall
We investigate Cauchy Slice Holography in de Sitter spacetime. By performing a deformation of a (bottom-up) dS/CFT model, we obtain a holographic theory living on flat Cauchy…
hep-th2025
Kosmic Field Theories: Towards Holographic Duals for Unitary String Cosmologies
Ayngaran Thavanesan, Aron C. Wall
Recent work on cosmological amplitudes has established reality conditions (derived from unitarity) for general particle-creation processes in flat FLRW cosmologies, in the Bunch-Da…
hep-th2025
Bounding field excursions along null geodesics with applications to cosmology
Aidan Herderschee, Aron C. Wall
Scalar fields in theories of gravity often inhabit a moduli space of vacua, and coherent spatial or temporal variations in their expectation values can produce measurable gravitati…