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cond-mat.str-el2005★ 34 cited
Zero temperature optical conductivity of ultra-clean Fermi liquids and superconductors
A. Rosch, P. C. Howell
We calculate the low-frequency optical conductivity sigma(w) of clean metals and superconductors at zero temperature neglecting the effects of impurities and phonons. In general, t…
cond-mat.str-el2001
Non-Fermi liquid behaviour and superconductivity in the dissipative model
P. C. Howell, A. J. Schofield
We study an exactly-solvable model which shows a zero-temperature transition from a non-Fermi liquid to a Fermi liquid as a function of particle density. The quantum critical point…