Degres of freedom in Massive Gravity

We study in a systematic way a generic nonderivative (massive) deformation of general relativity using the Hamiltonian formalism. The number of propagating degrees of freedom is analyzed in a nonperturbative and background independent way. We show that the condition of having only five propagating degrees of freedom can be cast in a set of differential equations for the deforming potential. Though the conditions are rather restrictive, many solutions can be found.

Titolo: Degres of freedom in Massive Gravity
Autori: 
NESTI, FABRIZIO
mostra contributor esterni 
Data di pubblicazione: 2012
Rivista: 
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY  
Abstract: We study in a systematic way a generic nonderivative (massive) deformation of general relativity using the Hamiltonian formalism. The number of propagating degrees of freedom is analyzed in a nonperturbative and background independent way. We show that the condition of having only five propagating degrees of freedom can be cast in a set of differential equations for the deforming potential. Though the conditions are rather restrictive, many solutions can be found.
Handle: http://hdl.handle.net/11368/2900778
Appare nelle tipologie:1.1 Articolo in Rivista

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