The D0-brane metric in N = 2 sigma models

Details The D0-brane metric in N = 2 sigma models The D0-brane metric in N = 2 sigma models

2000-06-30

arxiv.org/abs/hep-th/0006241v2

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, harvmac.tex compiled "big". Conclusions changed. The D0 metric DOES recieve an $R^2$ contribution at two loop order.

Scientific paper

We investigate the physical metric seen by a D0-brane probe in the background
geometry of an N=2 sigma model. The metric is evaluated by calculating the
Zamolodchikov metric for the disc two point function of the boundary operators
corresponding to the displacement of the D0-brane boundary. At two loop order
we show that the D0 metric receives an $R^2$ contribution.

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