# Touring the Hagedorn ridge

@article{Barbn2004TouringTH, title={Touring the Hagedorn ridge}, author={Jos{\'e} L F Barb{\'o}n and Eliezer Rabinovici}, journal={arXiv: High Energy Physics - Theory}, year={2004}, pages={1973-2008} }

We review aspects of the Hagedorn regime in critical string theories, from basic facts about the ideal gas approximation to the proposal of a global picture inspired by general ideas of holography. It was suggested that the condensation of thermal winding modes triggers a first-order phase transition. We propose, by an Euclidean analogue of the string/black hole correspondence principle, that the transition is actually related to a topology change in spacetime. Similar phase transitions induced…

## 74 Citations

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