KBc子代数中的快子势
Tachyon potential in KBc subalgebra
摘要：
我们在KBc子代数中计算了开弦场论的经典作用量和有效快子势，这是Erler和Schnabl最近发现的快子凝聚的解析解中广泛使用的。发现字符串字段的级别扩展终止于级别3。我们发现闭弦真空是经典作用量的一个鞍点。我们还计算了快子场的有效势。通过对辅助场的积分，闭弦真空变得稳定。结果表明，有效势是有界的，因此没有失控方向。我们还论证了简单的基于身份的解决方案的有效性。
英文摘要：
We evaluate the classical action and the effective tachyon potential of open string field theory within KBc subalgebra, which is extensively used in analytic solution for tachyon condensation recently found by Erler and Schnabl. It is found that the level expansion of the string field terminates at level 3. We find that the closed string vacuum is a saddle point of the classical action. We also evaluate the effective potential for tachyon field. The closed string vaccum becomes stable by integrationg out an auxiliary field. It is found that the effective potential is bounded below hence has no runaway direction. We also argue validity of simple identity based solution.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
