3 papers
gr-qc2021
Holography and black holes in asymptotically flat FLRW
Martin Enriquez-Rojo, Till Heckelbacher
In this paper, we extend the treatment of asymptotically decelerating spatially flat FLRW spacetimes initiated in [1]. We show that a certain class of those metrics is ruled by the…
hep-th2020
Asymptotic symmetries in spatially flat FRW
Martin Enriquez-Rojo, Till Heckelbacher
We perform an off-shell treatment of asymptotically decelerating spatially flat FRW spacetimes at future null infinity. We obtain supertranslation and superrotation-like asymptotic…
hep-th2020
Loops in dS/CFT
Till Heckelbacher, Ivo Sachs
We consider the semi-classical expansion of the Bunch-Davies wavefunction with future boundary condition in position space for a real scalar field, conformally coupled to a classic…