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Search: authors:"Keiyu Goto"

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A ∞ /L ∞ structure and alternative action for WZW-like superstring field theory

We propose new gauge invariant actions for open NS, heterotic NS, and closed NS-NS superstring field theories. They are based on the large Hilbert space, and have Wess-Zumino-Witten-like expressions which are the \( {\mathrm{\mathbb{Z}}}_2 \)-reversed versions of the conventional WZW-like actions. On the basis of the procedure proposed in arXiv:​1505.​01659, we show that our new...

Construction of action for heterotic string field theory including the Ramond sector

Extending the formulation for open superstring field theory given in arXiv:​1508.​00366, we attempt to construct a complete action for heterotic string field theory. The action is non-polynomial in the Ramond string field Ψ, and we construct it order by order in Ψ. Using a dual formulation in which the role of η and Q is exchanged, the action is explicitly obtained at the...