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- W2079872548 abstract "In the description of the extrinsic geometry of the string world sheet regarded as a conformal immersion of a 2-d surface in $R^3$, it was previously shown that, restricting to surfaces with $hsurd{g} = 1$, where $h$ is the mean scalar curvature and $g$ is the determinant of the induced metric on the surface, leads to Virasaro symmetry. An explicit form of the effective action on such surfaces is constructed in this article which is the extrinsic curvature analog of the WZNW action. This action turns out to be the gauge invariant combination of the actions encountered in 2-d intrinsic gravity theory in light-cone gauge and the geometric action appearing in the quantization of the Virasaro group. This action, besides exhibiting Virasaro symmetry in $z$-sector, has $SL(2,C)$ conserved currents in the $bar{z}$-sector. This allows us to quantize this theory in the $bar{z}$-sector along the lines of the WZNW model. The quantum theory on $hsurd{g} = 1$ surfaces in $ R^3$ is shown to be in the same universality class as the intrinsic 2-d gravity theory." @default.
- W2079872548 created "2016-06-24" @default.
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- W2079872548 date "1995-12-01" @default.
- W2079872548 modified "2023-10-16" @default.
- W2079872548 title "A Conformal Field Theory of Extrinsic Geometry of 2-d Surfaces" @default.
- W2079872548 doi "https://doi.org/10.1006/aphy.1995.1112" @default.
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