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arXiv 0907.2560hep-th
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带边界Virasoro极小模型中的整体流动

Bulk flows in Virasoro minimal models with boundaries

Stefan Fredenhagen, Matthias R. Gaberdiel, Cornelius Schmidt-Colinet

摘要:

Virasoro极小模型的边界条件下的行为进行了研究。特别地,我们考虑了体变形的最小相关体场之间的第m和第(m-1)酉极小模型插值。在存在边界的情况下,该整体流在边界上诱导RG流,这确保了所得到的边界条件在(m-1)st模型中是保形的。通过结合微扰RG技术的见解,从缺陷和非微扰边界流的结果,我们确定的流动的端点,即边界条件的任意边界条件的第m理论流。

英文摘要:

The behaviour of boundary conditions under relevant bulk perturbations is studied for the Virasoro minimal models. In particular, we consider the bulk deformation by the least relevant bulk field which interpolates between the mth and (m-1)st unitary minimal model. In the presence of a boundary this bulk flow induces an RG flow on the boundary, which ensures that the resulting boundary condition is conformal in the (m-1)st model. By combining perturbative RG techniques with insights from defects and results about non-perturbative boundary flows, we determine the endpoint of the flow, i.e. the boundary condition to which an arbitrary boundary condition of the mth theory flows to.

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