English

Finite N corrections to white hot string bits

High Energy Physics - Theory 2020-01-06 v2 Mathematical Physics math.MP

Abstract

String bit systems exhibit a Hagedorn transition in the NN\to\infty limit. However, there is no phase transition when NN is finite (but still large). We calculate two-loop, finite NN corrections to the partition function in the low temperature regime. The Haar measure in the singlet-restricted partition function contributes pieces to loop corrections that diverge as O(N)\mathcal{O}(N) when summed over the mode numbers. We study how these divergent pieces cancel each other out when combined. The properly normalized two loop corrections vanish as O(N1)\mathcal{O}(N^{-1}) for all temperatures below the Hagedorn temperature. The coefficient of this 1/N1/N dependence decreases with temperature and diverges at the Hagedorn pole.

Keywords

Cite

@article{arxiv.1909.08468,
  title  = {Finite N corrections to white hot string bits},
  author = {Sourav Raha},
  journal= {arXiv preprint arXiv:1909.08468},
  year   = {2020}
}

Comments

added references, modified certain passages

R2 v1 2026-06-23T11:19:14.764Z