From AdS3/CFT2 to Black Holes/Topological Strings

From AdS3/CFT2 to Black Holes/Topological Strings
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从 AdS3/CFT2 到黑洞/拓扑弦

DOI:
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
Xi Yin
Xi Yin
中科院分区:
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文献类型:
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作者:
D. Gaiotto;A. Strominger;Xi Yin

文献摘要

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相似文献

一大类4D黑洞的椭圆亏格Z_(BH)可以表示为ADS_3xS^2xCY_3吸引子上的M理论配分函数。我们通过在多粒子手性基态上求和膜的手性基态来近似这个配分函数,这些基态在S^2的视界上包裹着CY_3能级和朗道能级的曲线。值得注意的是,如果膜和反膜占据地平线上的对角点,它们可以保持相同的超电荷。结果表明,膜对Z_{BH}的贡献精确地给出了拓扑弦配分函数Z_{top},而反膜则给出了Ar的Z_{top},即Z_{bh}=|Z_{top}|^2。
The elliptic genus Z_{BH} of a large class of 4D black holes can be expressed as an M-theory partition function on an AdS_3xS^2xCY_3 attractor. We approximate this partition function by summing over multiparticle chiral primary states of membranes which wrap curves in the CY_3 and tile Landau levels on the horizon S^2. Significantly, membranes and antimembranes can preserve the same supercharges if they occupy antipodal points on the horizon. It is shown the membrane contribution to Z_{BH} gives precisely the topological string partition function Z_{top} while the antimembranes give ar Z_{top}, implying Z_{BH}=|Z_{top}|^2 in this approximation.