A note on the thermodynamics of `little string' theory

Abstract

We study the thermodynamics of the D1-D5 system on a five-torus, focussing on the roles of different scales. One can take a decoupling limit such that the tension of the `little string' inside the fivebrane remains finite and the physics is 5+1 dimensional. The dual black geometry exhibits a boosted Hagedorn phase, as well as a phase describing a boosted fivebrane gas. The dependence on the boost yields information about the nature of the fivebrane modes and their interactions. In particular, the form of the equations of state suggests a description in terms of $k=Q_1{Q}_5$ degrees of freedom, which may lead to an explanation of the $(Q_5{)}^3$ growth in the fivebrane density of states below the Hagedorn transition.

12 pages, latex+epsf, 2 figures

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• Large N Field Theories, String Theory and Gravity
• M Theory As A Matrix Model: A Conjecture
• Supergravity and The Large N Limit of Theories With Sixteen Supercharges
• Matrix Description of M-theory on $T^5$ and $T^5/Z_2$
• D-branes and Fat Black Holes
• Schwarzschild Black Holes from Matrix Theory
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Cited by in corpus (1)

• Near Hagedorn Dynamics of NS Fivebranes, or A New Universality Class of Coiled Strings