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Holographic fundamental matter in multilayered media
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- Gran, Ulf, 1973 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jokela, Niko (author)
- Helsingin Yliopisto,University of Helsinki
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- Musso, Daniele (author)
- Universidade de Santiagode Compostela
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- (creator_code:org_t)
- 2019
- 2019
- English.
- In: Journal of High Energy Physics. - 1029-8479 .- 1126-6708. ; 2019:12
- Journal article (peer-reviewed)
Abstract
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Holography and condensed matter physics (AdS/CMT)
- D-branes
- AdS-CFT Correspondence
Publication and Content Type
- art (subject category)
- ref (subject category)
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