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arXiv 0904.3744hep-thgr-qcmath-phmath.MP
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开超弦场论的扭结

Kinks of open superstring field theory

Gianluca Calcagni, Giuseppe Nardelli

摘要:

在充分考虑快子有效作用量中的非定域算符的情况下,我们构造了超对称开弦场论在最低层次上的近似扭结解。为了这个目的,我们推导出两个不完全伽玛函数的乘积的复制公式,它决定了解决方案的近似水平。时间扭结是欧几里得理论中的一个瞬子,具有明确的隧穿概率。空间扭结解表示一个不稳定的D9-膜衰减为一个稳定的D8-膜。我们计算了膜张力的比值,它几乎精确地再现了预期的值。

英文摘要:

We construct approximate kink solutions of supersymmetric open string field theory at lowest level when non-local operators in the tachyon effective action are fully taken into account. To this purpose we derive two duplication formulae for products of incomplete gamma functions, which determine the level of approximation of the solutions. The time kink is an instanton of the Euclidean theory with a well-defined tunneling probability. The spatial kink solution represents an unstable D9-brane decaying into a stable D8-brane. We calculate the ratio of the brane tensions, which almost exactly reproduces the expected value.

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