Zobrazeno 1 - 10
of 287
pro vyhledávání: '"Marotta, Vincenzo"'
We develop a new approach to T-duality based on Courant algebroid relations which subsumes the usual T-duality as well as its various generalisations. Starting from a relational description for the reduction of exact Courant algebroids over foliated
Externí odkaz:
http://arxiv.org/abs/2308.15147
We study the geometry of foliated non-Lorentzian spacetimes in terms of the Godbillon-Vey class of the foliation. We relate the intrinsic torsion of a foliated Aristotelian manifold to its Godbillon-Vey class, and interpret it as a measure of the loc
Externí odkaz:
http://arxiv.org/abs/2304.12722
We introduce T-duality invariant versions of D-branes in doubled geometry using a global covariant framework based on para-Hermitian geometry and metric algebroids. We define D-branes as conformal boundary conditions for the open string version of th
Externí odkaz:
http://arxiv.org/abs/2202.05680
Publikováno v:
Complex Manifolds 8 (2021) no.1, 354-402
We give a self-contained survey of some approaches aimed at a global description of the geometry underlying double field theory. After reviewing the geometry of Courant algebroids and their incarnations in the AKSZ construction, we develop the theory
Externí odkaz:
http://arxiv.org/abs/2104.07774
We give a covariant realization of the doubled sigma-model formulation of duality-symmetric string theory within the general framework of para-Hermitian geometry. We define a notion of generalized metric on a para-Hermitian manifold and discuss its r
Externí odkaz:
http://arxiv.org/abs/1910.09997
After reviewing some of the fundamental aspects of Drinfel'd doubles and Poisson-Lie T-duality, we describe the three-dimensional isotropic rigid rotator on $SL(2,\mathbb{C})$ starting from a non-Abelian deformation of the natural carrier space of it
Externí odkaz:
http://arxiv.org/abs/1904.03727
Publikováno v:
JHEP11(2019)060
The Principal Chiral Model (PCM) defined on the group manifold of SU(2) is here investigated with the aim of getting a further deepening of its relation with Generalized and Doubled Geometry. A one-parameter family of equivalent Hamiltonian descripti
Externí odkaz:
http://arxiv.org/abs/1903.01243
Akademický článek
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We survey physical models which capture the main concepts of double field theory on para-Hermitian manifolds. We show that the geometric theory of Lagrangian and Hamiltonian dynamical systems is an instance of para-Kahler geometry which extends to a
Externí odkaz:
http://arxiv.org/abs/1810.03953
A simple mechanical system, the three-dimensional isotropic rigid rotator, is here investigated as a 0+1 field theory, aiming at further investigating the relation between Generalized/Double Geometry on the one hand and Doubled World-Sheet Formalism/
Externí odkaz:
http://arxiv.org/abs/1804.00744