Statut | Confirmé |
Série | RENC-THEO |
Domaines | hep-th |
Date | Jeudi 19 Octobre 2017 |
Heure | 10:00 |
Institut | IHP |
Salle | 314 |
Nom de l'orateur | Jokela |
Prenom de l'orateur | Niko |
Addresse email de l'orateur | |
Institution de l'orateur | University of Helsinki |
Titre | Holographic pinning in probe-brane models |
Résumé | In a holographic probe-brane model exhibiting a spontaneously spatially modulated CDW+SDW ground state, I will introduce explicit sources of symmetry breaking in the form of ionic and antiferromagnetic lattices. I will demonstrate pinning, in which the translational Goldstone mode is lifted by the introduction of explicit sources of translational symmetry breaking. The numerically computed optical conductivity fits very well to a Drude-Lorentz model with a small residual metallicity, precisely matching analytic formulas for the DC conductivity. I also demonstrate an instability of the striped phase in the presence of a large-amplitude ionic lattice. |
Numéro de preprint arXiv | |
Commentaires | |
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