Equations of motion for massive spin 2 field coupled to gravity
نویسندگان
چکیده
منابع مشابه
Causality of Massive Spin 2 Field in External Gravity
We investigate the structure of equations of motion and lagrangian constraints in the most general theory of massive spin 2 field interacting with external gravitational field. We demonstrate how consistency with the flat spacetime limit can be achieved if the external gravity fulfills vacuum Einstein equations with arbitrary cosmological constant and show that in this case there exists one-par...
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I show that the gravitational scattering amplitudes of a spin-5/2 field with mass m ≪ MP l violate tree-level unitarity at energies √ s ≈ √ mMP l if the coupling to gravity is minimal. Unitarity up to energies √ s ≈ MP l is restored by adding a suitable non-minimal term, which gives rise to interactions violating the (strong) equivalence principle. These interactions are only relevant at distan...
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An action for a massless graviton interacting with a massive spin-2 field is proposed. The model is based on coupling the metric tensor to an SP (4) gauge theory spontaneously broken to SL(2, C). The symmetry breaking is achieved by using a Higgs multiplet containing a scalar field and a vector field related by a constraint. We show that in the non-unitary gauge and for the Fierz-Pauli form of ...
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Einstein’s equations are derived from a linear theory in flat spacetime using free field gauge invariance and universal coupling. The gravitational potential can be either covariant or contravariant and of almost any density weight. These results are adapted to yield universally coupled massive variants of Einstein’s equations, yielding two one-parameter families of distinct theories with spin ...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2000
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(00)00389-8