56 citations · 112 across the 9 of their papers we have counts for
9 papers
A discrete series gauge field at the late-time boundary of
Manizheh Botshekananfard, Elif Büşra Güraksın, Vasileios A. Letsios +1
We study the free Maxwell field on the planar patch of four-dimensional de Sitter spacetime (). We review its bulk canonical quantization in the Bunch-Davies vacuum, and we g…
On conformal symmetry in large- quiver mechanics
Andrea De Marco, Mustafa Mullahasanoglu, Joris Raeymaekers +2
The microscopic description of extremal supersymmetric black holes in AdS/CFT holography has remained elusive despite recent progress in the statistical description of near…
The Discreet Charm of the Discrete Series in DS
Dionysios Anninos, Tarek Anous, Ben Pethybridge +1
We study quantum field theories placed on a two-dimensional de Sitter spacetime (dS) with an eye on the group-theoretic organisation of single and multi-particle states. We exp…
Particles of a de Sitter Universe
Gizem Şengör
The de Sitter spacetime is a maximally symmetric spacetime. It is one of the vacuum solutions to Einstein equations with a cosmological constant. It is the solution with a positive…
Scalar two-point functions at the late-time boundary of de Sitter
Gizem Sengor, Constantinos Skordis
We calculate two-point functions of scalar fields of mass and their conjugate momenta at the late-time boundary of de Sitter with Bunch-Davies boundary conditions, in general $…
Unitarity at the Late time Boundary of de Sitter
Gizem Sengor, Constantinos Skordis
The symmetry group of the de Sitter spacetime, accommodates fields of various masses and spin among its unitary irreducible representations. These unitary representations are label…
Toward an Effective Field Theory Approach to Reheating
Ogan Ozsoy, John T. Giblin, Eva Nesbit +2
We investigate whether Effective Field Theory (EFT) approaches, which have been useful in examining inflation and dark energy, can also be used to establish a systematic approach t…
BRST Quantization of Cosmological Perturbations
Cristian Armendariz-Picon, Gizem Şengör
BRST quantization is an elegant and powerful method to quantize theories with local symmetries. In this article we study the Hamiltonian BRST quantization of cosmological perturbat…
Is the Effective Field Theory of Dark Energy Effective?
Eric V. Linder, Gizem Sengör, Scott Watson
The effective field theory of cosmic acceleration systematizes possible contributions to the action, accounting for both dark energy and modifications of gravity. Rather than makin…