MPS-RR 1998-25
October 1998

Thermodynamics of D0-branes in matrix theory

Jan Ambjørn

Y. M. Makeenko, G. W. Semenoff

Abstract

We examine the matrix theory representations of D0-brane dynamics at finite temperature. In this case, violation of supersymmetry by temperature leads to a non-trivial static potential between D0-branes at any finite temperature. We compute the static potential in the 1-loop approximation and show that it is short-ranged and attractive. We compare the result with the computations in superstring theory. We show that thermal states of D0-branes can be reproduced by matrix theory only when certain care is taken in integration over the moduli space of classical solutions in compactified time.

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