The identity string field and the tachyon vacuum

The identity string field and the tachyon vacuum
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恒等弦场和快子真空

DOI:
10.1088/1126-6708/2001/07/016
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发表时间:
2001
影响因子:
5.4
通讯作者:
Nicolas Moeller
Nicolas Moeller
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
I. Ellwood;Bo Feng;Yang;Nicolas Moeller

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我们证明了新的BRST算子Q的整个上同调在快子真空附近的平凡等价于星代数恒等式I的Q-精确度。我们使用能级截断来表明,随着能级的增加,恒等式变得更精确的Q-精确。我们把计算进行到第九级,达到3%的准确度。我们的工作在新的视角下支持了森关于快子真空周围没有开放弦自由度的猜想。作为副产品,找到了i关于Virasoro算子的一个新的简单的表达式。
We show that the triviality of the entire cohomology of the new BRST operator Q around the tachyon vacuum is equivalent to the Q-exactness of the identity I of the star-algebra. We use level truncation to show that as the level is increased, the identity becomes more accurately Q-exact. We carry our computations up to level nine, where an accuracy of 3% is attained. Our work supports, under a new light, Sen's conjecture concerning the absence of open string degrees of freedom around the tachyon vacuum. As a by-product, a new and simple expression for I in terms of Virasoro operators is found.
T.Kugo:“非多项式闭弦场理论:作用及其规范不变性”Nucl.Phys.B。
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