Phase structure of matrix quantum mechanics at finite temperature

DOI DOI 被引用文献21件 オープンアクセス

書誌事項

公開日
2007-10-30
DOI
  • 10.1088/1126-6708/2007/10/097
  • 10.48550/arxiv.0706.3517
公開者
Springer Science and Business Media LLC

説明

We study matrix quantum mechanics at finite temperature by Monte Carlo simulation. The model is obtained by dimensionally reducing 10d U(N) pure Yang-Mills theory to 1d. Following Aharony et al., one can view the same model as describing the high temperature regime of (1+1)d U(N) super Yang-Mills theory on a circle. In this interpretation an analog of the deconfinement transition was conjectured to be a continuation of the black-hole/black-string transition in the dual gravity theory. Our detailed analysis in the critical regime up to N=32 suggests the existence of the non-uniform phase, in which the eigenvalue distribution of the holonomy matrix is non-uniform but gapless. The transition to the gapped phase is of second order. The internal energy is constant (giving the ground state energy) in the uniform phase, and rises quadratically in the non-uniform phase, which implies that the transition between these two phases is of third order.

17 pages, 9 figures, (v2) refined arguments in section 3 ; reference added

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