Physics – High Energy Physics
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986stin...8728479s&link_type=abstract
Presented at the Summer Workshop on High Energy Physics and Cosmology, Trieste, Italy, 30 Jun. 1986
Physics
High Energy Physics
Lorentz Transformations, Nonlinearity, String Theory, Bosons, Compacting, Cosmology, Equations Of Motion, Invariance
Scientific paper
The connection between sigma-models and string theories is discussed, as well as how the sigma-models can be used as tools to prove various results in string theories. Closed bosonic string theory in the light cone gauge is very briefly introduced. Then, closed bosonic string theory in the presence of massless background fields is discussed. The light cone gauge is used, and it is shown that in order to obtain a Lorentz invariant theory, the string theory in the presence of background fields must be described by a two-dimensional conformally invariant theory. The resulting constraints on the background fields are found to be the equations of motion of the string theory. The analysis is extended to the case of the heterotic string theory and the superstring theory in the presence of the massless background fields. It is then shown how to use these results to obtain nontrivial solutions to the string field equations. Another application of these results is shown, namely to prove that the effective cosmological constant after compactification vanishes as a consequence of the classical equations of motion of the string theory.
No associations
LandOfFree
Non-linear sigma-models and string theories 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 Non-linear sigma-models and string theories, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-linear sigma-models and string theories will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1741734