Duality in linearized gravity and holography

被引:11
作者
Bakas, Ioannis [1 ]
机构
[1] Univ Patras, Dept Phys, GR-26500 Patras, Greece
关键词
S-DUALITY; SITTER; SPACETIMES;
D O I
10.1088/0264-9381/26/6/065013
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We consider spherical gravitational perturbations of AdS(4) spacetime satisfying general boundary conditions at spatial infinity. Using the holographic renormalization method, we compute the energy-momentum tensor and show that it can always be cast in the form of a Cotton tensor for a dual boundary metric. In particular, axial and polar perturbations obeying the same boundary conditions for the effective Schrodinger wavefunctions exhibit an energy momentum/Cotton tensor duality at conformal infinity. We demonstrate explicitly that this is holographic manifestation of the electric/magnetic duality of linearized gravity in the bulk, which simply exchanges axial with polar perturbations of AdS(4) spacetime. We note that this particular realization of gravitational duality is also valid for perturbations near flat and dS(4) spacetime, depending on the value of a cosmological constant.
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页数:18
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