# Wilsonian effective action of superstring theory

@article{Sen2016WilsonianEA, title={Wilsonian effective action of superstring theory}, author={Ashoke Sen}, journal={Journal of High Energy Physics}, year={2016}, volume={2017}, pages={1-21} }

A bstractBy integrating out the heavy fields in type II or heterotic string field theory one can construct the effective action for the light fields. This effective theory inherits all the algebraic structures of the parent theory and the effective action automatically satisfies the Batalin-Vilkovisky quantum master equation. This theory is manifestly ultraviolet finite, has only light fields as its explicit degrees of freedom, and the Feynman diagrams of this theory reproduce the exact…

## 36 Citations

String theory integrands and supergravity divergences

- PhysicsJournal of High Energy Physics
- 2019

A bstractAt low energies, interactions of massless particles in type II strings compactified on a torus Td are described by an effective Wilsonian action S$$ \mathcal{S} $$(Λ), consisting of the…

Localization of effective actions in heterotic string field theory

- MathematicsJournal of High Energy Physics
- 2020

We consider the algebraic couplings in the tree level effective action of the heterotic string. We show how these couplings can be computed from closed string field theory. When the light fields we…

Light-cone reduction of Witten’s open string field theory

- PhysicsJournal of High Energy Physics
- 2019

A bstractWe elucidate some exact relations between light-cone and covariant string field theories on the basis of the homological perturbation lemma for A∞. The covariant string field splits into the…

Analyticity and crossing symmetry of superstring loop amplitudes

- PhysicsJournal of High Energy Physics
- 2019

A bstractBros, Epstein and Glaser proved crossing symmetry of the S-matrix of a theory without massless fields by using certain analyticity properties of the off-shell momentum space Green’s function…

Cutkosky rules and unitarity (violation) in D-instanton amplitudes

- PhysicsJournal of High Energy Physics
- 2021

Abstract
In perturbative amplitudes in quantum field theory and string field theory, Cutkosky rule expresses the anti-hermitian part of a Feynman diagram in terms of sum over all its cut diagrams,…

Mapping between Witten and lightcone string field theories

- PhysicsJournal of High Energy Physics
- 2021

Abstract
We propose a transformation between the off-shell field variables of Witten’s open bosonic string field theory and the traditional lightcone string field theory of Kaku and Kikkawa, based…

Gauge-invariant operators of open bosonic string field theory in the low-energy limit

- Physics
- 2020

In the AdS/CFT correspondence we consider correlation functions of gauge-invariant operators on the gauge theory side, which we obtain in the low-energy limit of the open string sector. To…

Closed superstring field theory and its applications

- Physics
- 2017

We review recent developments in the construction of heterotic and type II string field theories and their various applications. These include systematic procedures for determining the shifts in the…

D-instantons, string field theory and two dimensional string theory

- PhysicsJournal of High Energy Physics
- 2021

Abstract
In [4] Balthazar, Rodriguez and Yin (BRY) computed the one instanton contribution to the two point scattering amplitude in two dimensional string theory to first subleading order in the…

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