Non-perturbative Thermodynamics in Matrix String Theory

Details Non-perturbative Thermodynamics in Matrix String Theory Non-perturbative Thermodynamics in Matrix String Theory

1999-04-13

arxiv.org/abs/hep-th/9904094v2

Nucl.Phys. B556 (1999) 152-176

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 3 figures. Several points are clarified. Final version to appear in Nucl. Phys. B. Also available at http://condmat1

Scientific paper

10.1016/S0550-3213(99)00388-0

A study of the thermodynamics in IIA Matrix String Theory is presented. The free string limit is calculated and seen to exactly reproduce the usual result. When energies are enough to excite non-perturbative objects like D-particles and specially membranes, the situation changes because they add a large number of degrees of freedom that do not appear at low energies. There seems to be a negative specific heat (even in the Microcanonical Ensemble) that moves the asymptotic temperature to zero. Besides, the mechanism of interaction and attachment of open strings to D-particles and D-membranes is analyzed.

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