In ultraclean multicomponent superconductors, fluctuation-induced DC conductivity enhancement near the critical point follows the same critical behavior as in the diffusive limit.
These are found by reading off the paramagnetic and diamagnetic four-currents that appear in the free theory after minimal substitution [25]
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Fluctuation conductivity in ultraclean multicomponent superconductors
In ultraclean multicomponent superconductors, fluctuation-induced DC conductivity enhancement near the critical point follows the same critical behavior as in the diffusive limit.