Dynamics and thermodynamics of a probe brane in the multicenter and rotating D3-brane background

Details Dynamics and thermodynamics of a probe brane in the multicenter and rotating D3-brane background Dynamics and thermodynamics of a probe brane in the multicenter and rotating D3-brane background

1999-09-13

arxiv.org/abs/hep-th/9909077v2

JHEP 9909 (1999) 027

Physics

High Energy Physics

High Energy Physics - Theory

Revtex, 16 pages, no figures, minor changes

Scientific paper

10.1088/1126-6708/1999/09/027

We study the dynamics and thermodynamics of a probe D3-brane in the rotating D3-brane background and in its extremal limit, which is a multicenter configuration of D3-branes distributed uniformly on a disc. In the extremal background, if the angular momentum of the probe does not vanish, the probe is always bounced back at some turning point. When its angular momentum vanishes, in the disc plane, the probe will be captured at the edge of the disc; in the hyperplane orthogonal to the disc, the probe will be absorbed at the center of the disc. In the non-extremal background, if the probe is in the hyperplane orthogonal to the disc, it will be captured at the horizon; if the probe is restricted in the disc plane, the probe will be bounced back at a turning point, which is just the infinite red-shift hyperplane of the rotating background, even when the angular momentum of the probe vanishes. The thermodynamics of a relative static D3-brane probe is also investigated to the rotating D3-brane source. Two critical points are found. One is just the thermodynamically stable boundary of the source rotating D3-branes; the other is related to the distance between the probe and the source, which can be regarded as the mass scale in the corresponding super Yang-Mills theory. If the probe is static, the second critical point occurs as the probe is at the infinite red-shift hyperplane of the background. The relevance to the thermodynamics of the super Yang-Mills theory is discussed briefly.

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