String Field Theory Around the Tachyon Vacuum
String Field Theory Around the Tachyon Vacuum
复制标题
围绕快子真空的弦场论
DOI：
10.4310/atmp.2001.v5.n2.a5
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发表时间：
2000
影响因子：
1.5
通讯作者：
B. Zwiebach
中科院分区：
文献类型：
--
作者：
L. Rastelli;A. Sen;B. Zwiebach
假设在快子真空周围，三次开弦场论的动力学项纯粹由鬼算符构成，我们就得到了规范不变作用量，它明显地实现了在真空周围开弦动力学的缺失。我们测试这一建议，显示存在的任意余维在这个弦场论的块解决方案。在这个分析中的关键成分是快子绿色函数的解析性质的某些假设。借助于对这些绿色函数性质的进一步假设，我们还计算了不同维数的块解的张力比。这个结果与已知的不同维数D-膜的张力比的结果完全一致。
Assuming that around the tachyon vacuum the kinetic term of cubic open string field theory is made purely of ghost operators we are led to gauge invariant actions which manifestly implement the absence of open string dynamics around this vacuum. We test this proposal by showing the existence of lump solutions of arbitrary codimension in this string field theory. The key ingredients in this analysis are certain assumptions about the analyticity properties of tachyon Green’s functions. With the help of some further assumptions about the properties of these Green’s functions, we also calculate the ratios of tensions of lump solutions of different dimensions. The result is in perfect agreement with the known answers for the ratios of tensions of D-branes of different dimensions.