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arXiv · 1612.06978

Momentum analyticity of the holographic electric polarizability in 2+1 dimensions

Lei Yin·Hai-cang Ren·Ting-Kuo Lee·Defu Hou
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Abstract

The static electric polarization of a holographic field theory dual to the Einstein-Maxwell theory in the background of $AdS_4$ with a Reissner-Nordstöm (AdS-RN) black hole is investigated. We prove that the holographic polarization is a meromorphic functions in complex momentum plane and locate analytically the asymptotic distribution of the poles along two straight lines parallel to the imaginary axis for a large momentum magnitude. The results are compared with the numerical result on Friedel-like poles of the same holographic model reported in the literature and with the momentum singularities of the one-loop polarization in weak-coupling spinor QED$_3$ and scalar QED$_3$ with the similarities and differences discussed.

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Lei Yin, Hai-cang Ren, Ting-Kuo Lee, Defu Hou. 2017-04-30. Momentum analyticity of the holographic electric polarizability in 2+1 dimensions. https://doi.org/10.1007/jhep04(2017)126

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