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arXiv 1005.0499hep-thgr-qc
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从矩阵模型引出的史瓦西几何

Schwarzschild Geometry Emerging from Matrix Models

Daniel N. Blaschke, Harold Steinacker

摘要:

我们演示了如何从杨米尔斯型矩阵模型膜的各种几何,并考虑史瓦西和Reissner-Nordstroem几何的例子。我们给出了这些膜在R^{2,5}和R^{4,6}中的显式嵌入,以及适当的泊松响应。辛结构决定了时空的非交换性。对于大的r,嵌入是渐近平坦的,具有渐近常数θ^{μν},因此适合于推广到多体构型。这是我们以前的工作arXiv:1003.4132的一个例证,在那里我们已经展示了如何在这样的矩阵模型中实现爱因斯坦-希尔伯特作用量。

英文摘要:

We demonstrate how various geometries can emerge from Yang-Mills type matrix models with branes, and consider the examples of Schwarzschild and Reissner-Nordstroem geometry. We provide an explicit embedding of these branes in R^{2,5} and R^{4,6}, as well as an appropriate Poisson resp. symplectic structure which determines the non-commutativity of space-time. The embedding is asymptotically flat with asymptotically constant θ^{μν} for large r, and therefore suitable for a generalization to many-body configurations. This is an illustration of our previous work arXiv:1003.4132, where we have shown how the Einstein-Hilbert action can be realized within such matrix models.

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