Holographic fundamental matter in multilayered media
Artikel i vetenskaplig tidskrift, 2019

We describe a strongly coupled layered system in 3+1 dimensions by means of a top-down D-brane construction. Adjoint matter is encoded in a large-Nc stack of D3-branes, while fundamental matter is confined to (2 + 1)-dimensional defects introduced by a large-Nf stack of smeared D5-branes. To the anisotropic Lifshitz-like background geometry, we add a single flavor D7-brane treated in the probe limit. Such bulk setup corresponds to a partially quenched approximation for the dual field theory. The holographic model sheds light on the anisotropic physics induced by the layered structure, allowing one to disentangle flavor physics along and orthogonal to the layers as well as identifying distinct scaling laws for various dynamical quantities. We study the thermodynamics and the fluctuation spectrum with varying valence quark mass or baryon chemical potential. We also focus on the density wave propagation in both the hydrodynamic and collisionless regimes where analytic methods complement the numerics, while the latter provides the only resource to address the intermediate transition regime.

Holography and condensed matter physics (AdS/CMT)


AdS-CFT Correspondence


Ulf Gran

Chalmers, Fysik

Niko Jokela

Helsingin Yliopisto

Daniele Musso

Universidade de Santiagode Compostela

Instituto Galego de Física de Altas Enerxías (IGFAE)

Alfonso V. Ramallo

Instituto Galego de Física de Altas Enerxías (IGFAE)

Universidade de Santiagode Compostela

Marcus Tornsö

Chalmers, Fysik, Teoretisk fysik

Journal of High Energy Physics

1126-6708 (ISSN) 1029-8479 (eISSN)

Vol. 2019 12 38


Atom- och molekylfysik och optik

Annan fysik

Den kondenserade materiens fysik



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