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arxiv: 1610.04268 · v1 · pith:2WPGBD67new · submitted 2016-10-13 · ✦ hep-th

Fermionic spectral functions in backreacting p-wave superconductors at finite temperature

classification ✦ hep-th
keywords spectraltemperaturecouplingfunctioncriticalfermionicfiniteorder
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We investigate the spectral function of fermions in a $p$-wave superconducting state, at finite both temperature and gravitational coupling, using the $AdS/CFT$ correspondence and extending previous research. We found that, for any coupling below a critical value, the system behaves as its zero temperature limit. By increasing the coupling, the "peak-dip-hump" structure that characterizes the spectral function at fixed momenta disappears. In the region where the normal/superconductor phase transition is first order, the presence of a non-zero order parameter is reflected in the absence of rotational symmetry in the fermionic spectral function at the critical temperature.

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