Abstract
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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ArXiv ePrint: 1201.2485
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Wu, JP., Zeng, HB. Dynamic gap from holographic fermions in charged dilaton black branes. J. High Energ. Phys. 2012, 68 (2012). https://doi.org/10.1007/JHEP04(2012)068
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DOI: https://doi.org/10.1007/JHEP04(2012)068