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arXiv · 2510.07155

Observables of boundary RG flows from string field theory

Jaroslav Scheinpflug·Martin Schnabl·Jakub Vošmera
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Abstract

We present simple explicit formulae for the change of the $g$-function, boundary state, boundary spectrum and structure constants between the endpoints of short boundary RG flows at next-to-leading order. The formulae are derived using open string field theory and tested on integrable RG flows between conformal boundary states in unitary Virasoro minimal models.

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Jaroslav Scheinpflug, Martin Schnabl, Jakub Vošmera. 2025-10-08. Observables of boundary RG flows from string field theory. https://arxiv.org/abs/2510.07155

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