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Can the Hagedorn Phase Transition be explained from Matrix Model for Strings?

High Energy Physics - Theory 2009-12-04 v3

Abstract

The partition function of BFSS matrix model is studied for two different classical backgrounds upto 1-loop level. One of the backgrounds correspond to a membrane wrapped around a compact direction and another to a localized cluster of D0D0-branes. It is shown there exist phase transitions between these two configurations - but only in presence of an IR cut-off. The low temperature phase corresponds to a string (wrapped membrane) phase and so we call this the Hagedorn phase transition. While the presence of an IR cut-off seemingly is only required for perturbative analysis to be valid, the physical necessity of such a cut-off can be seen in the dual supergravity side. It has been argued from entropy considerations that a finite size horizon must develop even in an extremal configuration of D0-branes, from higher derivative O(gs)O(g_s) corrections to supergravity. It can then be shown that the Hagedorn like transition exists in supergravity also. Interestingly the perturbative analysis also shows a second phase transition back to a string phase. This is also reminiscent of the Gregory-Laflamme instability.

Keywords

Cite

@article{arxiv.0805.0076,
  title  = {Can the Hagedorn Phase Transition be explained from Matrix Model for Strings?},
  author = {B. Sathiapalan and Nilanjan Sircar},
  journal= {arXiv preprint arXiv:0805.0076},
  year   = {2009}
}

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R2 v1 2026-06-21T10:36:29.865Z