Tachyon vacuum of bosonic open string field theory in marginally deformed backgrounds
Tachyon vacuum of bosonic open string field theory in marginally deformed backgrounds
复制标题
微变形背景下玻色子开弦场理论的快子真空
DOI：
10.1093/ptep/pts070
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
T. Takahashi
中科院分区：
文献类型：
--
作者：
S. Inatomi;I. Kishimoto;T. Takahashi
我们考虑玻色开弦场理论在边缘变形的背景下，这是通过扩大弦场周围的身份为基础的解决方案与边缘变形。我们找到了一组新的弦场，满足theKB calgebra，但幂零动力学算子是围绕基于身份的边缘解扩展的理论。利用这些弦场，我们构造了边缘形变背景下的快子真空解。真空的能量密度与没有边缘形变的快子真空的能量密度相当。规范不变重叠的变化，根据边缘变形的影响，从已知的结果在共形场理论（CFT）的预期。这些结果表明，真空能量为零的身份为基础的边缘解在原来的理论。
We consider bosonic open string field theory in marginally deformed backgrounds, which is obtained by expanding the string field around identity-based solutions associated with marginal deformations. We find a new set of string fields that satisfies theKBcalgebra, but the nilpotent kinetic operator is that of the theory expanded around the identity-based marginal solution. By use of these string fields, we construct the tachyon vacuum solution in marginally deformed backgrounds. The vacuum energy density is equivalent to that of the tachyon vacuum without marginal deformations. The gauge invariant overlap is changed according to the effect of marginal deformations, as expected from known results in conformal field theory (CFT). These results suggest that the vacuum energy is zero for the identity-based marginal solutions in the original theory.