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The Yang-Baxter $\sigma$-model is a systematic way to generate integrable deformations of AdS$_5\times$S$^5$. We recast the deformations as seen by open strings, where the metric is undeformed AdS$_5\times$S$^5$ with constant string…

High Energy Physics - Theory · Physics 2017-05-31 Thiago Araujo , Ilya Bakhmatov , Eoin Ó Colgáin , Jun-ichi Sakamoto , Mohammad M. Sheikh-Jabbari , Kentaroh Yoshida

Yang-Baxter string sigma-models provide a systematic way to deform coset geometries, such as $AdS_p \times S^p$, while retaining the $\sigma$-model integrability. It has been shown that the Yang-Baxter deformation in target space is simply…

High Energy Physics - Theory · Physics 2018-08-01 I. Bakhmatov , E. Ó Colgáin , M. M. Sheikh-Jabbari , H. Yavartanoo

We find a nonsupersymmetric dilatonic deformation of $AdS_5$ geometry as an exact nonsingular solution of the type IIB supergravity. The dual gauge theory has a different Yang-Mills coupling in each of the two halves of the boundary…

High Energy Physics - Theory · Physics 2009-11-10 Dongsu Bak , Michael Gutperle , Shinji Hirano

A truncation of the SL(5) Exceptional Field Theory that allows to describe spacetimes of the form $M_4 \times M_7$ with the 4-form flux on $M_4$ is constructed. The resulting theory is used to test the recently proposed tri-vector…

High Energy Physics - Theory · Physics 2020-06-05 Ilya Bakhmatov , Kirill Gubarev , Edvard T. Musaev

We consider the action of a non-abelian T-duality on backgrounds with an AdS${}_5$ factor in type IIA supergravity, finding a new type IIB background, as well as the non-abelian T-dual of a domain wall solution which has as limits the…

High Energy Physics - Theory · Physics 2015-07-01 Thiago R. Araujo , Horatiu Nastase

Yang-Baxter deformations of superstring sigma-models have recently inspired a supergravity solution generating technique. Using the open/closed string map and a Killing bi-vector as a deformation parameter, new solutions can be built, such…

High Energy Physics - Theory · Physics 2019-01-29 Ilya Bakhmatov , Edvard Musaev

We consider a family of deformations of T^{1,1} in the Yang-Baxter sigma model approach. We first discuss a supercoset description of T^{1,1}, which makes manifest the full symmetry of the space and leads to the standard Sasaki-Einstein…

High Energy Physics - Theory · Physics 2014-09-17 P. Marcos Crichigno , Takuya Matsumoto , Kentaroh Yoshida

We explicitly derive Lax pairs for string theories on Yang-Baxter deformed backgrounds, 1) gravity duals for noncommutative gauge theories, 2) $\gamma$-deformations of S$^5$, 3) Schr\"odinger spacetimes and 4) abelian twists of the global…

High Energy Physics - Theory · Physics 2015-11-02 Takashi Kameyama , Hideki Kyono , Jun-ichi Sakamoto , Kentaroh Yoshida

By calculating inequivalent classical r-matrices for the $gl(2,\mathbb{R})$ Lie algebra as solutions of (modified) classical Yang-Baxter equation ((m)CYBE)), we classify the YB deformations of Wess-Zumino-Witten (WZW) model on the…

High Energy Physics - Theory · Physics 2023-11-07 Ali Eghbali , Tayebe Parvizi , Adel Rezaei-Aghdam

We analyze the supersymmetry conditions for a class of SU(2) structure backgrounds of Type IIB supergravity, corresponding to a specific ansatz for the supersymmetry parameters. These backgrounds are relevant for the AdS/CFT correspondence…

High Energy Physics - Theory · Physics 2009-11-11 Ruben Minasian , Michela Petrini , Alberto Zaffaroni

We study the integrable $\eta$ and $\lambda$-deformations of supercoset string sigma models, the basic example being the deformation of the $AdS_5 \times S^5$ superstring. We prove that the kappa symmetry variations for these models are of…

High Energy Physics - Theory · Physics 2016-11-03 Riccardo Borsato , Linus Wulff

We show that the first $AdS_6$ backgrounds in Type IIB supergravity known in the literature, namely those constructed via T-duality from the Brandhuber-Oz solution to massive IIA, fit within an extension of the global $AdS_6 \times S^2$…

High Energy Physics - Theory · Physics 2019-02-20 Yolanda Lozano , Niall T. Macpherson , Jesús Montero

We elevate $\lambda$-deformed $\sigma$-models into full type-II supergravity backgrounds. We construct several solutions which contain undeformed $AdS_n$ spaces, with $n=2,3,4$ and $6$, as an integrable part. In that respect, our examples…

High Energy Physics - Theory · Physics 2021-02-23 Georgios Itsios , Konstantinos Sfetsos

We promote the open-closed string map, originally formulated by Seiberg \& Witten, to a solution generating prescription in generalized supergravity. The approach hinges on a knowledge of an antisymmetric bivector $\Theta$, built from…

High Energy Physics - Theory · Physics 2018-07-11 I. Bakhmatov , Ö. Kelekci , E. Ó Colgáin , M. M. Sheikh-Jabbari

We present three different Type IIB AdS$_4$ Supergravity solutions, derived using the electrostatic-like problem formalism which preserves 8 Poincar\'{e} Supercharges. Two of these solutions correspond to the Abelian and non-Abelian T-duals…

High Energy Physics - Theory · Physics 2022-08-03 Paul Merrikin , Ricardo Stuardo

We show that five-dimensional anti de-Sitter space remains a solution to low-energy type IIB supergravity when the leading higher-derivative corrections to the classical supergravity (which are non-perturbative in the string coupling) are…

High Energy Physics - Theory · Physics 2009-10-31 Tom Banks , Michael B. Green

In this paper we investigate the algebraic geometric nature of a solution of the Yang-Baxter equation based on the quantum deformation of the centrally extended $sl(2|2)$ superalgebra proposed by Beisert and Koroteev \cite{BEKO}. We derive…

Mathematical Physics · Physics 2017-04-05 M. J. Martins

In this Letter, we study the semi-classical spectrum of integrable worldsheet $\sigma$-models using the Spectral Curve. We consider a Homogeneous Yang-Baxter deformation of the $AdS_5\times S^5$ superstring, understood as the composition of…

High Energy Physics - Theory · Physics 2024-12-11 Sibylle Driezen , Niranjan Kamath

We use the formalism of generalized geometry to study the generic supersymmetric AdS_5 solutions of type IIB supergravity that are dual to N=1 superconformal field theories (SCFTs) in d=4. Such solutions have an associated six-dimensional…

High Energy Physics - Theory · Physics 2010-08-20 Maxime Gabella , Jerome P. Gauntlett , Eran Palti , James Sparks , Daniel Waldram

We derive the part of the Lagrangian for the sigma model on the eta-deformed AdS_5 x S^5 space which is quadratic in fermions and has the full dependence on bosons. We then show that there exists a field redefinition which brings the…

High Energy Physics - Theory · Physics 2016-05-10 Gleb Arutyunov , Riccardo Borsato , Sergey Frolov