Strange metal crossover in the doped holographic superconductor
arXiv:1808.02145 · doi:10.1007/JHEP10(2018)068
Abstract
In a recent paper, Kiritsis and Li presented a holographic model to study the competition between different orders at finite doping in holographic superconductors. In the present work, we introduce fermions into such model and study the fermionic spectral functions in the normal phase at zero and finite temperatures. Combining analytic and numerical methods, we found that there is a crossover from a strange metal with short lived excitations at small doping, into a Fermi liquid with well defined quasiparticles at large doping. The critical doping at which excitations becomes long lived increases with temperature. The emerging phase diagram is qualitatively similar to that of High Temperature Superconductors.
arXiv comment18 pages, 4 figures. Replaced by revised version, published in JHEP. References corrected
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