Friedel Oscillations in Holographic Metals

Details Friedel Oscillations in Holographic Metals Friedel Oscillations in Holographic Metals

2011-10-20

arxiv.org/abs/1110.4601v2

JHEP 01 (2012) 073

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, 5 figures

Scientific paper

10.1007/JHEP01(2012)073

In this article we study the conditions under which holographic metallic states display Friedel oscillations. We focus on systems where the bulk charge density is not hidden behind a black hole horizon. Understanding holographic Friedel oscillations gives a clean way to characterize the boundary system, complementary to probe fermion calculations. We find that fermions in a "hard wall" AdS geometry unambiguously display Friedel oscillations. However, similar oscillations are washed out for electron stars, suggesting a smeared continuum of Fermi surfaces.

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