Jeans-like instabilities for strings in cosmological backgrounds

Details Jeans-like instabilities for strings in cosmological backgrounds Jeans-like instabilities for strings in cosmological backgrounds

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nuphb.333..253s&link_type=abstract

Nuclear Physics B, Volume 333, Issue 1, p. 253-266.

Physics

Nuclear Physics

95

Scientific paper

We study quantum-string propagation in cosmological backgrounds pointing out the possible emergence of Jeans-like instabilities. We also determine under which conditions the universe expands, when distances are measured by stringy rods. Examples include Friedmann-Robertson-Walker (FRW) and de Sitter metrics, as well as a linear-in-time dilaton (constant background charge). A time-dependent dilaton does not give an expanding universe in the above sense, while FRW or de Sitter metrics usually do. For the latter case (inflation), instabilities occur for large enough Hubble constant.

Affiliated with

Also associated with

No associations

Rating

Jeans-like instabilities for strings in cosmological backgrounds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Jeans-like instabilities for strings in cosmological backgrounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jeans-like instabilities for strings in cosmological backgrounds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1249983