Exponential metric fields |
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Authors: | Wytler Cordeiro dos Santos |
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Institution: | (1) Oslo University College Faculty of Engineering, Cpy Olavs Plass, 0130 Oslo, Norway; |
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Abstract: | The Laser Interferometer Space Antenna (LISA) mission will use advanced technologies to achieve its science goals: the direct
detection of gravitational waves, the observation of signals from compact (small and dense) stars as they spiral into black
holes, the study of the role of massive black holes in galaxy evolution, the search for gravitational wave emission from the
early Universe. The gravitational red-shift, the advance of the perihelion of Mercury, deflection of light and the time delay
of radar signals are the classical tests in the first order of General Relativity (GR). However, LISA can possibly test Einstein’s
theories in the second order and perhaps, it will show some particular feature of non-linearity of gravitational interaction.
In the present work we are seeking a method to construct theoretical templates that limit in the first order the tensorial
structure of some metric fields, thus the non-linear terms are given by exponential functions of gravitational strength. The
Newtonian limit obtained here, in the first order, is equivalent to GR. |
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Keywords: | |
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