2011/02/28 by Ching-Yu Huang, Feng-Li Lin, Debaprasad Maity · 22 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Computer science #Condensed matter physics #Gauge (firearms) #Gauge theory #Geometry #Holography #Invariant (physics) #Materials science #Mathematics #Multi-band device #Optics #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum electrodynamics #Quantum mechanics #Superconductivity #Superconductivity in MgB2 and Alloys #Symmetry (geometry) #Telecommunications #Theoretical physics #cond-mat.str-el #cond-mat.supr-con #hep-th
paper · pdf · open access · doi:10.1016/j.physletb.2011.08.053
published in Physics Letters B 703(5), 633-640 (Elsevier BV) · 13 pages, 5 figures, v2. Major revision on the identification of U(1)_EM for evaluating the holographic conductivity in sec. 4 & add an appendix for inter-band conductivity matrix, v3. minor changes to match the published version on PLB
openalex publication_date 2011/08/25 · arxiv created 2011/09/05 · arxiv updated 2015/03/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose a gravity dual for the holographic superconductor with multi-band carriers. Moreover, the currents of these carriers are unified under a global flavored SO(3) symmetry, which is dual to the bulk SO(3) gauge symmetry. We study the phase diagram of our model, and find it qualitatively agrees with the one for the realistic 2-band superconductor, such as MgB2. We also identify the bulk field dual to the electromagnetic U(1)EM current, which should be invariant under the global flavored SO(3) rotation. We then evaluate the corresponding holographic conductivity and find the expected mean field like behaviors.