Dolan, Brian P. (1995) Geodesic Renormalisation Group Flow. (Preprint)
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Abstract
It is shown that the renormalisation group flow in coupling constant space can be interpreted in terms of a dynamical equation for the couplings analogous to viscous fluid flow under the action of a potential. For free scalar field theory the flow is geodesic in two dimensions, while for D ≠ 2 it is only geodesic in certain limits, e.g. for vanishing external source. For the 1-D Ising model the renormalisation flow is geodesic when the external magnetic field vanishes.
Item Type: | Article |
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Divisions: | School of Theoretical Physics > Preprints |
Date Deposited: | 19 Jun 2018 14:05 |
Last Modified: | 18 Jul 2018 13:10 |
URI: | http://dair.dias.ie/id/eprint/660 |
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