String Free Energy, Hagedorn and Gauge/String Duality
Abstract
Description
We give examples of modeling the string free energy whose behavior mimics that of QCD: a power-law at high temperature and an exponential decrease at low temperature. Although the effective description is in terms of strings, no limiting temperature exists, as expected for a crossover.
7 pages; v3: discussion improved in section 2, figure and references added
7 pages; v3: discussion improved in section 2, figure and references added