Spectrum of a supersymmetric color superconductor

Author:

Faedo Antón F.,Mateos David,Pantelidou Christiana,Tarrío Javier

Abstract

Abstract We have recently shown that the ground state of $$ \mathcal{N} $$ N = 4, SU(N c) super Yang- Mills coupled to N fN c flavors, in the presence of non-zero isospin and R-symmetry charges, is a supersymmetric, superfluid, color superconductor. The holographic description consists of N f D7-brane probes in AdS5 ×S5 with electric and instantonic fields on their worldvolume. These correspond to fundamental strings and D3-branes dissolved on the D7-branes, respectively. Here we use this description to determine the spectrum of mesonic excitations. As expected for a charged superfluid we find non-relativistic, massless Goldstone modes. We also find extra ungapped modes that are not associated to the breaking of any global symmetries but to the supersymmetric nature of the ground state. If the quark mass is much smaller than the scale of spontaneous symmetry breaking a pseudo-Goldstone boson is also present. We highlight some new features that appear only for N f > 2. We show that, in the generic case of unequal R-symmetry charges, the dissolved strings and D3-branes blow up into a D5-brane supertube stretched between the D7-branes.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Holographic approach to compact stars and their binary mergers;Progress in Particle and Nuclear Physics;2022-09

2. Holographic modeling of nuclear matter and neutron stars;The European Physical Journal C;2022-04

3. Holographic colour superconductors at finite coupling with NJL Interactions;The European Physical Journal C;2021-12

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