A closed string tachyon vacuum
A closed string tachyon vacuum
复制标题
闭合弦速子真空
DOI：
10.1088/1126-6708/2005/09/054
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发表时间：
2005
影响因子：
5.4
通讯作者：
B. Zwiebach
中科院分区：
文献类型：
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作者：
Haitang Yang;B. Zwiebach
在玻色闭弦场论中，“快子势”是指快子、介子和一组无限大质量场的势。早期计算的潜在的不包括的二次和三次的相互作用形成的临界点和四次快子项被破坏。我们包括的潜在的贡献，并发现一个临界点的生存，似乎变得更浅。我们被引导去考虑一个封闭的弦快子真空的存在，一个零作用量的临界点，代表一个时空不再是动力学的状态。这种解释的一些证据是从耦合的度规-介子-快子有效场方程的研究中发现的，这些方程表现出滚动的解，其中介子运行到强耦合，爱因斯坦度规发生坍缩。
In bosonic closed string field theory the ``tachyon potential" is a potential for the tachyon, the dilaton, and an infinite set of massive fields. Earlier computations of the potential did not include the dilaton and the critical point formed by the quadratic and cubic interactions was destroyed by the quartic tachyon term. We include the dilaton contributions to the potential and find that a critical point survives and appears to become more shallow. We are led to consider the existence of a closed string tachyon vacuum, a critical point with zero action that represents a state where space-time ceases to be dynamical. Some evidence for this interpretation is found from the study of the coupled metric-dilaton-tachyon effective field equations, which exhibit rolling solutions in which the dilaton runs to strong coupling and the Einstein metric undergoes collapse.
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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