AT7 - Theories of gravity: alternatives to the cosmological and particle standard models |
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Speaker |
Garattini, Remo |
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| Talk Title |
The Gravity's Rainbow Cosmological Constant |
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Abstract |
We compute the Zero Point Energy (ZPE) induced by quantum fluctuations around a fixed background with the help of a reformulation of the Wheeler-DeWitt equation. A variational approach is used for the calculation with Gaussian Trial Wave Functionals. The one loop contribution of the graviton to the ZPE is extracted keeping under control the UltraViolet divergences by means of a distorted gravitational field knows as Gravity's Rainbow. The finite ZPE is here interpreted as an induced Cosmological Constant. |
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