Journal
PHYSICAL REVIEW D
Volume 95, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.95.043539
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Funding
- DFG [TRR33]
- DAAD through the program Forschungsstipendium fur Doktoranden und Nachwuchswissenschaftler''
- Netherlands Organization for Scientific Research/Dutch Ministry of Education, Culture and Science (NWO/OCW)
- D-ITP consortium, a program of the NWO - OCW
- University of Pennsylvania
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We discuss the cosmological implications of nonlocal modifications of general relativity containing tensorial structures. Assuming the presence of standard radiation-and matter-dominated eras, we show that, except in very particular cases, the nonlocal terms contribute a rapidly growing energy density. These models therefore generically do not have a stable cosmological evolution.
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