Cold holographic matter in the Higgs branch

Itsios, Georgios (Departamento de Física de Partículas, Universidade de Santiago de Compostela, Spain) (Instituto Galego de Física de Altas Enerxías (IGFAE), Santiago de Compostela, E-15782, Spain) ; Jokela, Niko (Department of Physics, University of Helsinki, Finland) (Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FIN-00014, Finland) ; Ramallo, Alfonso V. (Departamento de Física de Partículas, Universidade de Santiago de Compostela, Spain) (Instituto Galego de Física de Altas Enerxías (IGFAE), Santiago de Compostela, E-15782, Spain)

02 June 2015

Abstract: We study collective excitations of cold (2+1) -dimensional fundamental matter living on a defect of the four-dimensional N=4 super Yang–Mills theory in the Higgs branch. This system is realized holographically as a D3–D5 brane intersection, in which the D5-brane is treated as a probe with a non-zero gauge flux across the internal part of its worldvolume. We study the holographic zero sound mode in the collisionless regime at low temperature and find a simple analytic result for its dispersion relation. We also find the diffusion constant of the system in the hydrodynamic regime at higher temperature. In both cases we study the dependence on the flux parameter which determines the amount of Higgs symmetry breaking. We also discuss the anyonization of this construction.


Published in: Physics letters B (2015)
Published by: Elsevier
DOI: 10.1016/j.physletb.2015.05.071
License: CC-BY-3.0



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