Dynamic gap from holographic fermions in charged dilaton black branes

Details Dynamic gap from holographic fermions in charged dilaton black branes Dynamic gap from holographic fermions in charged dilaton black branes

2012-01-12

arxiv.org/abs/1201.2485v2

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 7 figures; added refs, corrected typos

Scientific paper

We report a dynamical formation of a (Mott) gap from holographic fermions. By coupling a fermion field with dipole action to the charged dilaton black branes with a Lifshitz like IR geometry and $AdS_{4}$ boundary, we find that when the dipole interaction is large enough, spectral weight is transferred between bands, and beyond a critical dipole interaction, a gap emerges in the fermion density of states. The value of the gap becomes larger as the strength of the interaction keeps increasing.

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