Massive gravity from higher derivative gravity with boundary conditions

被引：0
作者：
Minjoon Park
Lorenzo Sorbo
机构：
[1] University of Massachusetts,Department of Physics
来源：
Journal of High Energy Physics | / 2013卷
关键词：
Classical Theories of Gravity; Cosmology of Theories beyond the SM;
D O I：
暂无
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摘要：
With an appropriate choice of parameters, a higher derivative theory of gravity can describe a normal massive sector and a ghost massless sector. We show that, when defined on an asymptotically de Sitter spacetime with Dirichlet boundary conditions, such a higher derivative gravity can provide a framework for a unitary theory of massive gravity in four spacetime dimensions. The resulting theory is free not only of higher derivative ghosts but also of the Boulware-Deser mode.
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