Collective excitations of massive flavor branes

Show full item record



Itsios , G , Jokela , N & Ramallo , A V 2016 , ' Collective excitations of massive flavor branes ' , Nuclear Physics, Section B , vol. 909 , pp. 677-724 .

Title: Collective excitations of massive flavor branes
Author: Itsios, Georgios; Jokela, Niko; Ramallo, Alfonso V.
Contributor organization: Department of Physics
Helsinki Institute of Physics
Date: 2016-08
Language: eng
Number of pages: 48
Belongs to series: Nuclear Physics, Section B
ISSN: 0550-3213
Abstract: We study the intersections of two sets of D-branes of different dimensionalities. This configuration is dual to a supersymmetric gauge theory with flavor hypermultiplets in the fundamental representation of the gauge group which live on the defect of the unflavored theory determined by the directions common to the two types of branes. One set of branes is dual to the color degrees of freedom, while the other set adds flavor to the system. We work in the quenched approximation, i.e., where the flavor branes are considered as probes, and focus specifically on the case in which the quarks are massive. We study the thermodynamics and the speeds of first and zero sound at zero temperature and non-vanishing chemical potential. We show that the system undergoes a quantum phase transition when the chemical potential approaches its minimal value and we obtain the corresponding non-relativistic critical exponents that characterize its critical behavior. In the case of (2 + 1)-dimensional intersections, we further study alternative quantization and the zero sound of the resulting anyonic fluid. We finally extend these results to non-zero temperature and magnetic field and compute the diffusion constant in the hydrodynamic regime. The numerical results we find match the predictions by the Einstein relation. (C) 2016 The Authors. Published by Elsevier B.V.
Subject: MATTER
114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion

Files in this item

Total number of downloads: Loading...

Files Size Format View
1_s2.0_S055032131630150X_main.pdf 718.3Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record