De Sitter space in gauge/gravity duality

被引:6
作者
Anguelova, Lilia [1 ]
Suranyi, Peter [2 ]
Wijewardhana, L. C. R. [2 ]
机构
[1] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria
[2] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA
关键词
GAUGE-THEORY; DYNAMICS;
D O I
10.1016/j.nuclphysb.2015.08.020
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We investigate gauge/gravity duality for gauge theories in de Sitter space. More precisely, we study a five-dimensional consistent truncation of type IIB supergravity, which encompasses a wide variety of gravity duals of strongly coupled gauge theories, including the Maldacena-Nunez solution and its walking deformations. We find several solutions of the 5d theory with dS(4) spacetime and nontrivial profiles for (some of) the scalars along the fifth (radial) direction. In the process, we prove that one of the equations of motion becomes dependent on the others, for nontrivial warp factor. This dependence reduces the number of field equations and, thus, turns out to be crucial for the existence of solutions with (A)dS(4) spacetime. Finally, we comment on the implications of our dS(4) solutions for building gravity duals of Glueball Inflation. (C) 2015 The Authors. Published by Elsevier B.V.
引用
收藏
页码:651 / 676
页数:26
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