Geometry of theory space and RG flows

Details Geometry of theory space and RG flows Geometry of theory space and RG flows

2002-05-25

arxiv.org/abs/hep-th/0205264v1

Mod.Phys.Lett. A17 (2002) 1037-1046

Physics

High Energy Physics

High Energy Physics - Theory

9 pages; to appear in the proceedings of IGQR-I (Dec 17-21, IUCAA, Pune, India) in Mod. Phys. Letts. (special issue)

Scientific paper

10.1142/S0217732302007089

The space of couplings of a given theory is the arena of interest in this article. Equipped with a metric ansatz akin to the Fisher information matrix in the space of parameters in statistics (similar metrics in physics are the Zamolodchikov metric or the O'Connor--Stephens metric) we investigate the geometry of theory space through a study of specific examples. We then look into renormalisation group flows in theory space and make an attempt to characterise such flows via its isotropic expansion, rotation and shear. Consequences arising from the evolution equation for the isotropic expansion are discussed. We conclude by pointing out generalisations and pose some open questions.

Affiliated with

Also associated with

No associations

Rating

Geometry of theory space and RG flows 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 Geometry of theory space and RG flows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometry of theory space and RG flows will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-361337