Annulus amplitudes and ZZ branes in minimal string theory
Annulus amplitudes and ZZ branes in minimal string theory
复制标题
最小弦理论中的环面振幅和 ZZ 膜
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
D. Shih
中科院分区:
文献类型:
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作者:
D. Kutasov;Kazumi Okuyama;Jongwon Park;N. Seiberg;D. Shih
We study the annulus amplitudes of (p,q) minimal string theory. Focusing on the ZZ-FZZT annulus amplitude as a target-space probe of the ZZ brane, we use it to confirm that the ZZ branes are localized in the strong-coupling region. Along the way we learn that the ZZ-FZZT open strings are fermions, even though our theory is bosonic! We also provide a geometrical interpretation of the annulus amplitudes in terms of the Riemann surface p,q that emerges from the FZZT branes. The ZZ-FZZT annulus amplitude measures the deformation of p,q due to the presence of background ZZ branes; each kind of ZZ-brane deforms only one A-period of the surface. Finally, we use the annulus amplitudes to argue that the ZZ branes can be regarded as ``wrong-branch tachyons which violate the bound α