70 citations · 954 across the 45 of their papers we have counts for
45 papers
Consistent truncation and generalized duality based on exceptional generalized cosets
Falk Hassler, Yuho Sakatani
We present a systematic framework for constructing consistent truncations of supergravity based on exceptional generalized cosets of the form $\GS \backslash G/H$. This approach ge…
Duality covariant curvatures for the heterotic string
Falk Hassler, David Osten, Yuho Sakatani
Duality covariant curvature and torsion tensors in double field theory/generalized geometry are central in analyzing consistent truncations, generalized dualities, and related inte…
O-covariant formulation of perfect and imperfect fluids in the double geometry
Eric Lescano, Nahuel Mirón-Granese, Yuho Sakatani
We study generic matter coupled to a -dimensional supergravity using a formulation of Double Field Theory (DFT), where all the fields are encoded in O multiplets. We stud…
Generalized Dualities for Heterotic and Type I Strings
Falk Hassler, Yuho Sakatani, Luca Scala
We define generalized dualities for heterotic and type I strings based on consistent truncations to half-maximal gauged supergravities in more than three dimensions. The latter are…
The Hierarchy of Curvatures in Exceptional Geometry
Falk Hassler, Yuho Sakatani
Despite remarkable success in describing supergravity reductions and backgrounds, generalized geometry and the closely related exceptional field theory are still lacking a fundamen…
On quantum Poisson-Lie T-duality of WZNW models
Yuho Sakatani, Yuji Satoh
We study Poisson-Lie T-duality of the Wess-Zumino-Novikov-Witten (WZNW) models which are obtained from a class of Drinfel'd doubles and its generalization. In this case, the result…
All maximal gauged supergravities with uplift
Falk Hassler, Yuho Sakatani
Generalised parallelisable spaces permit to uplift many maximal gauged supergravities to ten or eleven dimensions. While some of the former are explicitly known, the literature is…
Gauged sigma models and exceptional dressing cosets
Yuho Sakatani, Shozo Uehara
The Poisson-Lie (PL) T-duality is a generalized T-duality based on the Lie algebra of the Drinfel'd double. In particular, when we consider the PL T-duality of a coset space, the d…
Poisson-Lie T-plurality for dressing cosets
Yuho Sakatani
The Poisson-Lie T-plurality is an equivalence of string theories on various cosets , , , where is a Drinfel'd d…
Half-maximal Extended Drinfel'd Algebras
Yuho Sakatani
Extended Drinfel'd algebra (ExDA) is the underlying symmetry of non-Abelian duality in the low-energy effective theory of string theory. Non-Abelian U-dualities in maximal supergra…
Jacobi-Lie T-plurality
Jose J. Fernandez-Melgarejo, Yuho Sakatani
We propose a Leibniz algebra, to be called DD, which is a generalization of the Drinfel'd double. We find that there is a one-to-one correspondence between a DD and a Jacob…
Poisson-Lie T-plurality for WZW backgrounds
Yuho Sakatani
Poisson-Lie T-plurality constructs a chain of supergravity solutions from a Poisson-Lie symmetric solution. We study the Poisson-Lie T-plurality for supergravity solutions with …
Non-abelian U-duality at work
Edvard T. Musaev, Yuho Sakatani
Non-abelian U-duality originates from the construction of exceptional Drinfel'd algebra (EDA), which extends the constriction of the classical Drinfel'd double. This symmetry is a…
Extended Drinfel'd algebras and non-Abelian duality
Yuho Sakatani
A Drinfel'd algebra gives the systematic construction of generalized parallelizable spaces and this allows us to study an extended T-duality, known as the Poisson-Lie T-duality. Re…
E Exceptional Drinfel'd Algebras
Emanuel Malek, Yuho Sakatani, Daniel C. Thompson
The exceptional Drinfel'd algebra (EDA) is a Leibniz algebra introduced to provide an algebraic underpinning with which to explore generalised notions of U-duality in M-theory. In…
Born sigma model for branes in exceptional geometry
Yuho Sakatani, Shozo Uehara
In double field theory, the physical space has been understood as a subspace of the doubled space. Recently, the doubled space is defined as the para-Hermitian manifold and the phy…
Non-Abelian U-duality for membrane
Yuho Sakatani, Shozo Uehara
T-duality of string theory can be extended to the Poisson-Lie T-duality when the target space has a generalized isometry group given by a Drinfel'd double. In M-theory, T-duality i…
U-duality extension of Drinfel'd double
Yuho Sakatani
A family of algebras that extends the Lie algebra of the Drinfel'd double is proposed. This allows us to systematically construct the generalized frame fields $E_A{…
Duality rules for more mixed-symmetry potentials
Yuho Sakatani
T- and S-duality rules among the gauge potentials in type II supergravities are studied. In particular, by following the approach of arXiv:1909.01335, we determine the T- and S-dua…
Exotic branes and mixed-symmetry potentials II: Duality rules and exceptional -form gauge fields
Jose J. Fernandez-Melgarejo, Yuho Sakatani, Shozo Uehara
In U-duality-manifest formulations, supergravity fields are packaged into covariant objects such as the generalized metric and -form fields . While a parame…
Exotic branes and mixed-symmetry potentials I: predictions from symmetry
Jose J. Fernandez-Melgarejo, Yuho Sakatani, Shozo Uehara
Type II string theory or M-theory contains a broad spectrum of gauge potentials. In addition to the standard -form potentials, various mixed-symmetry potentials have been predic…
Type II DFT solutions from Poisson-Lie T-duality/plurality
Yuho Sakatani
String theory has the T-duality symmetry when the target space has Abelian isometries. A generalization of the T-duality, where the isometry group is non-Abelian, is known as the n…
Weyl invariance of string theories in generalized supergravity backgrounds
Jose J. Fernandez-Melgarejo, Jun-ichi Sakamoto, Yuho Sakatani +1
We revisit Weyl invariance of string theories in generalized supergravity backgrounds. In the previous work arXiv:1703.09213, a possible counterterm was constructed, but it seems t…
Holographic integration of and via
Thiago Araujo, Eoin Ó Colgáin, Yuho Sakatani +2
Prompted by the recent developments in integrable single trace and deformations of 2d CFTs, we analyse such deformations in the context of fro…