A Caltech Library Service

Nonlocal Cosmology

Deser, S. and Woodard, R. P. (2007) Nonlocal Cosmology. Physical Review Letters, 99 (11). Art. No. 111301. ISSN 0031-9007.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We explore nonlocally modified models of gravity, inspired by quantum loop corrections, as a mechanism for explaining current cosmic acceleration. These theories enjoy two major advantages: they allow a delayed response to cosmic events, here the transition from radiation to matter dominance, and they avoid the usual level of fine-tuning; instead, emulating Dirac's dictum, the required large numbers come from the large time scales involved. Their solar system effects are safely negligible, and they may even prove useful to the black hole information problem.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Deser, S.0000-0001-9285-9434
Additional Information:© 2007 The American Physical Society. (Received 15 June 2007; revised 18 July 2007; published 14 September 2007) This work was partially supported by National Science Foundation Grants Nos. PHY04-01667, PHY-0244714, and PHY-0653085, and by the Institute for Fundamental Theory at the University of Florida.
Funding AgencyGrant Number
University of FloridaUNSPECIFIED
Issue or Number:11
Classification Code:PACS numbers: 95.36.+x, 98.80.Cq
Record Number:CaltechAUTHORS:DESprl07
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8780
Deposited By: Archive Administrator
Deposited On:15 Sep 2007
Last Modified:02 Oct 2019 23:54

Repository Staff Only: item control page