Duality Phase Transition in Type I String Theory

Details Duality Phase Transition in Type I String Theory Duality Phase Transition in Type I String Theory

2005-02-15

arxiv.org/abs/hep-th/0502141v4

Physics

High Energy Physics

High Energy Physics - Theory

7pgs. Shortened, new abstract clarifies content

Scientific paper

We show that the duality phase transition in the unoriented type I theory of open and closed strings is_first order_. The order parameter is the semiclassical approximation to the heavy quark-antiquark potential at finite temperature, extracted from the covariant off-shell string amplitude with Wilson loop boundaries wrapped around the Euclidean time direction. Remarkably, precise calculations can be carried out on either side of the phase boundary at the string scale T_C = 1/2\pi \alpha^{'1/2} by utilizing the T-dual, type IB and type I', descriptions of the short string gas of massless gluon radiation. We will calculate the change in the duality transition temperature in the presence of an electromagnetic background field.

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