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arXiv 0810.4719hep-th
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N=1超共形场论的体诱导边界微扰

Bulk induced boundary perturbations for N=1 superconformal field theories

Matthias R Gaberdiel, Oliver Schlotterer

摘要:

考虑由一个自由玻色子和一个自由费米子组成的N=1超共形圆理论。在任何半径上,理论都有标准的狄利克雷和诺依曼膜,但对于有理半径,有额外的超共形边界条件,这些边界条件由SU(2)的商中的元素标记。我们分析这些膜的行为下的半径变化的整体扰动。在玻色子的情况下,整体扰动一般会导致边界RG流,其端点是狄利克雷或诺依曼膜的叠加。

英文摘要:

The N=1 superconformal circle theory consisting of a free boson and a free fermion is considered. At any radius the theory has standard Dirichlet and Neumann branes, but for rational radii there are additional superconformal boundary conditions that are labelled by elements in a quotient of SU(2). We analyse how these branes behave under the radius-changing bulk perturbation. As in the bosonic case, the bulk perturbation induces in general a boundary RG flow whose end-point is a superposition of Dirichlet or Neumann branes.

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