Tachyon Potential in KBc Subalgebra(Particles and Fields)

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概要

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• 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 vacuum becomes stable by integrating 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.

• 2010-10-25

著者

• ZEZE Syoji

  Yokote Seiryo Gakuin High School

関連論文

• Tachyon potential in KBc subalgebra
• Tachyon Potential in KBc Subalgebra(Particles and Fields)
• Classical Solutions and Order of Zeros in Open String Field Theory(Particles and Fields)
• Application of KBc Subalgebra in String Field Theory(String Field Theory and Related Aspects (SFT2010))
• Exploring Vacuum Manifold of Open String Field Theory(Particles and Fields)

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