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Reconstructing the Distortion Function for Nonlocal Cosmology
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, no. 8 (2009): 023-023
摘要
We consider the cosmology of modified gravity models in which Newton's constant is distorted by a function of the inverse d'Alembertian acting on the Ricci scalar. We derive a technique for choosing the distortion function so as to fit an arbitrary expansion history. This technique is applied numerically to the case of Lambda CDM cosmolog...更多
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