Gravity assisted dark energy dominance and cosmic acceleration
Shin’ichi NojiriDepartment of Applied Physics, National Defence Academy, Hashirimizu Yokosuka 239-8686, JapanSergei D. OdintsovInstituciò Catalana de Recerca i Estudis Avançats (ICREA) and Institut d'Estudis Espacials de Catalunya (IEEC), Edifici Nexus, Gran Capità 2-4, 08034 Barcelona, Spain
2004en
ABI
Abstract
It is proposed that dark energy may become dominant over standard matter due to universe expansion (curvature decrease). Two models: non-linear gravity–matter system and modified gravity may provide an effective phantom or effective quintessence dark energy which complies with the conjecture. The effective quintessence naturally describes current cosmic speed-up.
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