Abstract
It is often said that interactions destroy the particle nature of excitations. We report that, in holographic theory adding interaction term can create a new quasi particle spectrum, on the contrary. We show this by calculating the optical conductivity in a model with exact background solution and finding a new quasi-particle spectrum. Such new poles are consequence of some non-minimal interaction like Chern-Simon term. We also point out that the origin of the new peak in our example is the vortex formation by the anomalous magnetic moment induced by the interaction term.
Highlights
(a) Without the Pauli term (b) With the Pauli term function of vector particles in the boundary
In holographic theory adding interaction term can create a new quasi particle spectrum, on the contrary
We show this by calculating the optical conductivity in a model with exact background solution and finding a new quasi-particle spectrum
Summary
We describe the basic set up and calculational methods for optical conductivity. We adopted the basic scheme of [26] for our purpose. The readers who are not interested in technical details can go to the section 3 directly
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