The closed string field theory action vanishes

Abstract

Using the dilaton theorem, we show that the classical action of closed string field theory vanishes on-shell.

arXiv commentVersion 2: 8 pages. Published with additional references

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• Holographic Weyl anomaly in string theory
• Topological recursion for hyperbolic string field theory
• A boundary term for open string field theory
• Symplectic structure in open string field theory II: Sliding lump
• Covariant phase space and $L_{\infty }$ algebras
• Symplectic structure in open string field theory I: Rolling tachyons
• Symplectic structure in open string field theory III: Electric field
• Bridging Worldsheet CFTs and Wormholes