A Study of Accelerating Cosmologies from Superstring/M Theories
By N. Ohta. 2003
133 citations recorded by the source corpus.
We study aspects of the accelerating cosmologies obtained from the compactification of the vacuum solution and S2-branes of superstring/M theories. The parameter dependence of the resulting expansion of our universe and internal space is examined for all cases. We find that accelerated expansions are obtained also from spherical internal spaces, albeit the solution enters a contracting phase eventually. The relation between the models of SM2- and SD2-branes is also discussed, and a potential problem with the SD2-brane model is noted.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/7f771a518f651e5c10f1e7d3009a0dc98473c509
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- Accelerating cosmologies from M/String theory compactifications (2003, background): “+ 128α2 25 = 24 5 (25) 6However, we would like to point out that this conclusion is valid when the parameter t0 = 0. An accelerating expansion can be found even in this case for t0 < 0 as noted in [18, 20]. 7Note that when c 2 = 0, the parameter β can not be removed by renaming other parameters a”