Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Aldazabal, Gerardo"'
We first describe the low energy dynamics of ten dimensional heterotic supergravity compactified on the smooth, flat 3-manifold ${\mathbb T^3}/{\mathbb Z_2}$, without supersymmetry, and explain how it arises from flat heterotic gauge fields. The semi
Externí odkaz:
http://arxiv.org/abs/2205.09764
Autor:
Acharya, Bobby Samir, Aldazabal, Gerardo, Andrés, Eduardo, Font, Anamaría, Narain, Kumar, Zadeh, Ida G.
Superstring/M-theory compactified on compact Ricci flat manifolds have recently been conjectured to exhibit instabilities whenever the metrics do not have special holonomy. We use worldsheet conformal field theory to investigate instabilities of Type
Externí odkaz:
http://arxiv.org/abs/2010.02933
Autor:
Aldazabal, Gerardo, Ibáñez, Luis E.
We present a conjecture for the massless sector of perturbative 4D $N=1$ heterotic $(0,2)$ string vacua, including $U(1)^n$ gauge symmetries,one of them possibly anomalous (like in standard heterotic compactifications). Mathematically it states that
Externí odkaz:
http://arxiv.org/abs/1804.07322
A Double Field Theory (DFT) description of gauge symmetry enhancing-breaking in the heterotic string is presented. The construction, based on previous results for the bosonic string, relies on the extension of the tangent frame of DFT. The fluxes of
Externí odkaz:
http://arxiv.org/abs/1708.07148
We probe a slice of the massive winding sector of bosonic string theory from toroidal compactifications of Double Field Theory (DFT). This string subsector corresponds to states containing one left and one right moving oscillators. We perform a gener
Externí odkaz:
http://arxiv.org/abs/1611.04927
Publikováno v:
JHEP 1404 (2014) 049
We address the construction of manifest U-duality invariant generalized diffeomorphisms. The closure of the algebra requires an extension of the tangent space to include a tensor hierarchy indicating the existence of an underlying unifying structure,
Externí odkaz:
http://arxiv.org/abs/1312.4549
Publikováno v:
Class.Quant.Grav. 30 (2013) 163001
Double Field Theory (DFT) is a proposal to incorporate T-duality, a distinctive symmetry of string theory, as a symmetry of a field theory defined on a double configuration space. The aim of this review is to provide a pedagogical presentation of DFT
Externí odkaz:
http://arxiv.org/abs/1305.1907
Publikováno v:
JHEP11(2011)052
We perform a generalized Scherk-Schwarz dimensional reduction of Double Field Theory on a twisted double torus. The four dimensional effective action is shown to exactly reproduce the bosonic electric sector of gauged N = 4 supergravity. We present e
Externí odkaz:
http://arxiv.org/abs/1109.0290
Publikováno v:
Nuclear Physics, Section B 849 (2011) pp. 80-111
We analyze D = 4 compactifications of Type IIB theory with generic, geometric and non-geometric, dual fluxes turned on. In particular, we study N = 1 toroidal orbifold compactifications that admit an embedding of the untwisted sector into gauged N =
Externí odkaz:
http://arxiv.org/abs/1101.5954
Autor:
Aldazabal, Gerardo, Font, Anamaria
Publikováno v:
JHEP0802:086,2008
We show that a class of type IIA vacua recently found within the N=4 effective approach corresponds to compactification on Ads_4 \times S^3 \times S^3/Z_2^3. The results obtained using the effective method completely match the general ten-dimensional
Externí odkaz:
http://arxiv.org/abs/0712.1021