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15 papers · 2 filters
Scalar QED Action Density and Schwinger Pair Production in (A)dS_2
Sang Pyo Kim
We review the one-loop effective action in scalar QED and the Schwinger effect in a uniform electric field in a two-dimensional (anti-) de Sitter space. The Schwinger effect has a…
Scalar scattering via conformal higher spin exchange
E. Joung, S. Nakach, A. A. Tseytlin
Theories containing infinite number of higher spin fields require a particular definition of summation over spins consistent with their underlying symmetries. We consider a model o…
Information metric and Euclidean Janus correspondence
Dongsu Bak
We consider the quantum information metric of a family of CFTs perturbed by an exactly marginal operator, which has the dual description of the Euclidean Janus geometries. We first…
Compactifications and 1/4-BPS Vacua in Heterotic Supergravity
Stephen Angus, Cyril Matti, Eirik Eik Svanes
We continue the investigation into non-maximally symmetric compactifications of the heterotic string. In particular, we consider compactifications where the internal space is allow…
Aligned natural inflation with modulations
Kiwoon Choi, Hyungjin Kim
The weak gravity conjecture applied for the aligned natural inflation indicates that generically there can be a modulation of the inflaton potential, with a period determined by su…
Rainbow Valley of Colored (Anti) de Sitter Gravity in Three Dimensions
Seungho Gwak, Euihun Joung, Karapet Mkrtchyan +1
We propose a theory of three-dimensional (anti) de Sitter gravity carrying Chan-Paton color charges. We define the theory by Chern-Simons formulation with the gauge algebra $(\math…