Now showing items 1-10 of 10

    • Compactifications of the Klebanov-Witten CFT and new AdS3 backgrounds 

      Bea Besada, Yago; Edelstein Glaubach, José Daniel; Itsios, Georgios; Kooner, Karta S.; Núñez, Carlos; Schofield, Daniel; Sierra García, Jesús Aníbal (Springer, 2015)
      In this paper we find various new backgrounds in Type IIB, IIA and M-theory with an AdS3-factor. The solutions are smooth and preserve small amounts of SUSY. These new backgrounds are found by application of non-Abelian ...
    • Gravitational wave driving of a gapped holographic system 

      Fariña Biasi, Anxo; Mas Solé, Javier; Serantes Rubianes, Alexandre (Springer, 2019)
      This work addresses the response of a holographic conformal field theory to a homogeneous gravitational periodic driving. The dual geometry is the AdS-soliton, which models a strongly coupled quantum system in a gapped ...
    • Gravity dual of a multilayer system 

      Jokela, Niko; Penín Ascariz, José Manuel; Vázquez Ramallo, Alfonso; Zoakos, Dimitrios (Springer, 2019)
      We construct a gravity dual to a system with multiple (2+1)-dimensional layers in a (3 + 1)-dimensional ambient theory. Following a top-down approach, we generate a geometry corresponding to the intersection of D3- and ...
    • Holographic fundamental matter in multilayered media 

      Gran, Ulf; Jokela, Niko; Musso, Daniele; Vázquez Ramallo, Alfonso; Tornso, Marcus (Springer, 2019)
      We describe a strongly coupled layered system in 3+1 dimensions by means of a top-down D-brane construction. Adjoint matter is encoded in a large-Nc stack of D3-branes, while fundamental matter is confined to (2 + ...
    • Holographic zero sound at finite temperature in the Sakai-Sugimoto model 

      DiNunno, Brandon S.; Ihl, Matthias; Jokela, Niko; Pedraza, Juan F. (Springer, 2014)
      In this paper, we study the fate of the holographic zero sound mode at finite temperature and non-zero baryon density in the deconfined phase of the Sakai-Sugimoto model of holographic QCD. We establish the existence of ...
    • Information flows in strongly coupled ABJM theory 

      Balasubramanian, Vijay; Jokela, Niko; Ponni, Arttu; Vázquez Ramallo, Alfonso (Springer, 2019)
      We use holographic methods to characterize the RG flow of quantum information in a Chern-Simons theory coupled to massive fermions. First, we use entanglement entropy and mutual information between strips to derive the ...
    • Integrable deformations of strings on symmetric spaces 

      Hollowood, Timothy J.; Miramontes Antas, José Luis; Schmidtt, David M. (Springer, 2014)
      A general class of deformations of integrable sigma-models with symmetric space F/G target-spaces are found. These deformations involve defining the non-abelian T dual of the sigma-model and then replacing the coupling ...
    • On AdS to dS transitions in higher-curvature gravity 

      Otero Camaño, Xián; Edelstein Glaubach, José Daniel; Gomberoff, Andrés; Sierra García, Jesús Aníbal (Springer, 2015)
      We study the possible existence of gravitational phase transitions from AdS to dS geometries in the context of higher-curvature gravities. We use Lanczos-Gauss-Bonnet (LGB) theory with a positive cosmological constant ...
    • Spin-2 excitations in Gaiotto-Maldacena solutions 

      Itsios, Georgios; Penín Ascariz, José Manuel; Zacarías, Salomón (Springer, 2019)
      In this paper we study spin-2 excitations for a class of N = 2 supersymmetric solutions of type-IIA supergravity found by Gaiotto and Maldacena. The mass spectrum of these excitations can be derived by solving a second ...
    • Supersymmetric probes in warped AdS(6) 

      Penín Ascariz, José Manuel; Vázquez Ramallo, Alfonso; Rodríguez Gómez, Diego (Springer, 2019)
      We consider defects in 5d field theories corresponding to higher-rank generalizations of the ENf+1 theories; holographically dual to the Brandhuber-Oz background in type I’ String Theory. We concentrate on codimension 2 ...





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