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9 papers · 2 filters
Time-periodic solutions of massive scalar fields in AdS background: perturbative constructions
Nakwoo Kim
We consider scalar fields which are coupled to Einstein gravity with a negative cosmological constant, and construct periodic solutions perturbatively. In particular, we study tach…
Perspective on completing natural inflation
Ki-Young Choi, Jihn E. Kim, Bumseok Kyae
We present a perspective on the inflation paths in 2-, 3-,,, N-flation models based on the ultraviolet completion in heterotic string theory, where a number of grand unification sc…
Holography of 3d-3d correspondence at Large N
Dongmin Gang, Nakwoo Kim, Sangmin Lee
We study the physics of multiple M5-branes compactified on a hyperbolic 3-manifold. On the one hand, it leads to the 3d-3d correspondence which maps an superconform…
Warped Ricci-flat reductions
Eoin Ó Colgáin, M. M. Sheikh-Jabbari, Justin F. Vázquez-Poritz +2
We present a simple class of warped-product vacuum (Ricci-flat) solutions to ten and eleven-dimensional supergravity, where the internal space is flat and the warp factor supports…
On Quantization of AdS3 Gravity I: Semi-Classical Analysis
M. M. Sheikh-Jabbari, Hossein Yavartanoo
In this work we explore ideas in quantizing AdS Einstein gravity. We start with the most general solution to the 3d gravity theory which respects Brown-Henneaux boundary condit…
Gauged M-flation After BICEP2
A. Ashoorioon, M. M. Sheikh-Jabbari
In view of the recent BICEP2 results [arXiv:1403.3985] which may be attributed to the observation of B-modes polarization of the CMB with tensor-to-scalar ratio $r=0.2_{-0.05}^{+0.…