168 citations · 2k across the 48 of their papers we have counts for
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The correction from double field theory
Stanislav Hronek, Linus Wulff, Salomon Zacarias
It is known that the order correction to the tree-level effective action for the bosonic and heterotic string can be described in the framework of Double Field Theory (DFT). H…
Completing using
Linus Wulff
The tree-level string effective action is known to contain quartic Riemann terms with coefficient . In the case of the type II string this is the first correction. W…
String theory at order and the generalized Bergshoeff-de Roo identification
Stanislav Hronek, Linus Wulff
It has been shown by Marques and Nunez that the first -correction to the bosonic and heterotic string can be captured in the covariant formalism of Double Field Theory…
O(D,D) and the string expansion: An obstruction
Stanislav Hronek, Linus Wulff
Double Field Theory (DFT) is an attempt to make the O(d,d) T-duality symmetry of string theory manifest, already before reducing on a d-torus. It is known that supergravity can be…
Relaxing unimodularity for Yang-Baxter deformed strings
Stanislav Hronek, Linus Wulff
We consider so-called Yang-Baxter deformations of bosonic string sigma-models, based on an -matrix solving the (modified) classical Yang-Baxter equation. It is known that a unim…
Quantum correction to generalized T-dualities
Riccardo Borsato, Linus Wulff
Poisson-Lie duality is a generalization of abelian and non-abelian T-duality, and it can be viewed as a map between solutions of the low-energy effective equations of string theory…
The first -correction to homogeneous Yang-Baxter deformations using
Riccardo Borsato, Alejandro Vilar López, Linus Wulff
We use the -covariant formulation of supergravity familiar from Double Field Theory to find the first -correction to (unimodular) homogeneous Yang-Baxter (YB) deformati…
Two-loop conformal invariance for Yang-Baxter deformed strings
Riccardo Borsato, Linus Wulff
The so-called homogeneous Yang-Baxter (YB) deformations can be considered a non-abelian generalization of T-duality--shift--T-duality (TsT) transformations. TsT transformations are…
Constraining integrable AdS/CFT with factorized scattering
Linus Wulff
We consider (warped) AdS string backgrounds which allow for a GKP spinning string/null cusp solution. Integrability implies that the worldsheet S-matrix should factorize, which in…
Marginal deformations of WZW models and the classical Yang-Baxter equation
Riccardo Borsato, Linus Wulff
We show how so-called Yang-Baxter (YB) deformations of sigma models, based on an R-matrix solving the classical Yang-Baxter equation (CYBE), give rise to marginal current-current d…
Non-abelian T-duality and Yang-Baxter deformations of Green-Schwarz strings
Riccardo Borsato, Linus Wulff
We perform non-abelian T-duality for a generic Green-Schwarz string with respect to an isometry (super)group G, and we derive the transformation rules for the supergravity backgrou…
Trivial solutions of generalized supergravity vs non-abelian T-duality anomaly
Linus Wulff
The equations that follow from kappa symmetry of the type II Green-Schwarz string are a certain deformation, by a Killing vector field , of the type II supergravity equations. W…
Classifying integrable symmetric space strings via factorized scattering
Linus Wulff
All symmetric space solutions of type II supergravity have recently been found for . For the supersymmetric solutions (and their T-duals) it is known that the Green-Sc…
Condition on Ramond-Ramond fluxes for factorization of worldsheet scattering in anti-de Sitter space
Linus Wulff
Factorization of scattering is the hallmark of integrable 1+1 dimensional quantum field theories. For factorization of scattering to be possible the set of masses and momenta must…
On non-abelian T-duality and deformations of supercoset string sigma-models
Riccardo Borsato, Linus Wulff
We elaborate on the class of deformed T-dual (DTD) models obtained by first adding a topological term to the action of a supercoset sigma model and then performing (non-abelian) T-…
All symmetric AdS(n>2) solutions of type II supergravity
Linus Wulff
All symmetric space AdS(n) solutions of ten-dimensional type IIA and type IIB supergravity are constructed for n>2. There are a total of 26 geometries. Out of these only 7 allow fo…
Integrability of the superstring in AdS(3) x S(2) x S(2) x T(3)
Linus Wulff
Type II supergravity admits an AdS(3) x S(2) x S(2) x T(3) solution with fluxes depending on several free parameters. We determine the constraints on these parameters imposed by th…
All symmetric space solutions of eleven-dimensional supergravity
Linus Wulff
We find all symmetric space solutions of eleven-dimensional supergravity completing an earlier classification by Figueroa-O'Farrill. They come in two types: AdS solutions and pp-wa…
Integrable deformations of T-dual models
Riccardo Borsato, Linus Wulff
We present a method to deform (generically non-abelian) T duals of two-dimensional models, which preserves classical integrability. The deformed models are identified by a line…
Target space supergeometry of and -deformed strings
Riccardo Borsato, Linus Wulff
We study the integrable and -deformations of supercoset string sigma models, the basic example being the deformation of the superstring. We prove that the…
Kappa-symmetry of superstring sigma model and generalized 10d supergravity equations
A. A. Tseytlin, L. Wulff
We determine the constraints imposed on the 10d target superspace geometry by the requirement of classical kappa-symmetry of the Green-Schwarz superstring. In the type I case we fi…
The complete one-loop BMN S-matrix in AdS(3) x S(3) x T(4)
Per Sundin, Linus Wulff
We compute the full one-loop 2-particle S-matrix for excitations of the type IIB AdS(3) x S(3) x T(4) BMN string. The S-matrix is found to respect the expected symmetries and the p…
Supergravity background of lambda-deformed model for AdS2 x S2 supercoset
R. Borsato, A. A. Tseytlin, L. Wulff
Starting with the F/G supercoset model corresponding to the AdS_n x S^n superstring one can define the lambda-model of arXiv:1409.1538 either as a deformation of the F/F gauged WZW…
T-Duality of Green-Schwarz Superstrings on AdS(d) x S(d) x M(10-2d)
Michael C. Abbott, Jeff Murugan, Silvia Penati +6
We verify the self-duality of Green-Schwarz supercoset sigma models on AdS backgrounds (d=2,3,5) under combined bosonic and fermionic T-dualities without gauge fixi…