2020
DOI: 10.1093/ptep/ptaa063
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Non-Abelian U -duality for membranes

Abstract: Abstract The $T$-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 is understood as a subgroup of $U$-duality, but the non-Abelian extension of $U$-duality is still a mystery. In this paper we study membrane theory on a curved background with a generalized isometry group given by the $\mathcal E_n$ algebra. This provides a natural set… Show more

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Cited by 26 publications
(15 citation statements)
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“…Based on the generalisation of Poisson-Lie T-duality to the U-duality setup [36,62], an algebraic constraint for ρ αβγ was proposed that was conjectured to be a sufficient condition for the deformation to be a supergravity solution. The non-abelian deformed solutions described in the present work are in the non-unimodular class, meaning ∂ m Ω mnk = 0, therefore the corresponding ρ αβγ cannot satisfy the equations of [36] as the latter suppose unimodularity.…”
Section: Jhep05(2020)113mentioning
confidence: 99%
“…Based on the generalisation of Poisson-Lie T-duality to the U-duality setup [36,62], an algebraic constraint for ρ αβγ was proposed that was conjectured to be a sufficient condition for the deformation to be a supergravity solution. The non-abelian deformed solutions described in the present work are in the non-unimodular class, meaning ∂ m Ω mnk = 0, therefore the corresponding ρ αβγ cannot satisfy the equations of [36] as the latter suppose unimodularity.…”
Section: Jhep05(2020)113mentioning
confidence: 99%
“…A key point of [20,21] was that the EDA can be realised by a generalised Leibniz parallelisation for the exceptional tangent bundle T G ⊕ ∧ 2 T G thus echoing the set up of Poisson-Lie T-duality and allowing this framework to be used to generate solutions using the ideas of generalised Scherk-Schwarz reductions. Some features of the geometry, and the membrane interpretation, were then given in [22], while a classification of all possible EDAs for the case of n = 3 was made in [23].…”
Section: Jhep09(2020)151mentioning
confidence: 99%
“…those with mixed four-dimensional and sevendimensional indices. Using the dictionary reproduced in full in appendix A.3, we can, as in [22], work out the geometry giving rise to the Exceptional Drinfeld Algebra…”
Section: Jhep09(2020)151mentioning
confidence: 99%
“…The non-perturbative generalisation of Poisson-Lie T-duality to a U-duality version in M-theory, or more conservatively as a solution-generating mechanism of 11-dimensional supergravity, has long been an open problem, which was recently addressed in [17,18] and further elaborated on in [19][20][21]. Building on the interpretation of PLTD and Drinfel'd doubles within Double Field Theory (DFT), [17,18,[22][23][24] used Exceptional Field Theory (ExFT)/Exceptional Generalised Geometry to propose a natural generalisation of the Drinfel'd double for dualities along four spacetime dimensions.…”
Section: Jhep01(2021)020mentioning
confidence: 99%