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arXiv 1107.4186hep-th
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厄米矩阵模型中的体边界关联函数与最小Liouville引力

Bulk-boundary correlators in the hermitian matrix model and minimal Liouville gravity

Jean-Emile Bourgine, Goro Ishiki, Chaiho Rim

摘要:

构造了与圆盘上最小Liouville引力(LG)的一般体-边界关联数相对应的单矩阵模型(MM)关联函数。为了找到离散和连续方法之间的协议,我们调查的共振变换混合边界和散装耦合。它导致考虑两个部门,这取决于LG相关器的物质部分是否由于融合规则而消失。在消失的情况下,我们确定了显式变换的边界耦合在一阶体耦合。在非零的情况下,不涉及体积边界共振,只有一阶纯边界共振必须考虑。这些都是在我们以前的论文中确定的矩阵多项式编码。我们在几个非平凡的情况下检查了MM和LG的体边界关联函数的一致性。在这个过程中,我们开发了一种替代方法来推导边界共振编码多项式。

英文摘要:

We construct the one matrix model (MM) correlators corresponding to the general bulk-boundary correlation numbers of the minimal Liouville gravity (LG) on the disc. To find agreement between both discrete and continuous approach, we investigate the resonance transformation mixing boundary and bulk couplings. It leads to consider two sectors, depending on whether the matter part of the LG correlator is vanishing due to the fusion rules. In the vanishing case, we determine the explicit transformation of the boundary couplings at the first order in bulk couplings. In the non-vanishing case, no bulk-boundary resonance is involved and only the first order of pure boundary resonances have to be considered. Those are encoded in the matrix polynomials determined in our previous paper. We checked the agreement for the bulk-boundary correlators of MM and LG in several non-trivial cases. In this process, we developed an alternative method to derive the boundary resonance encoding polynomials.

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