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Motivated by the overwhelming evidence some type of quantum criticality underlies the power-law for the optical conductivity and $T-$linear resistivity in the cuprates, we demonstrate here how a scale-invariant or unparticle sector can lead to a unifying description of the observed scaling forms.
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2015
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A. El Azrak, R. Nahoum, N. Bontemps, M. Guilloux-Viry, C. Thivet, A. Perrin, S. Labdi, Z. Z. Li, and H. Raffy, Infrared properties of YBa 2 {\mathrm{YBa}}_{2} Cu 3 {\mathrm{Cu}}_{3} O 7 {\mathrm{O}}_{7} and Bi 2 {\mathrm{Bi}}_{2} Sr 2 {\mathrm{Sr}}_{2} Ca n − 1 {\mathrm{Ca}}_{\mathit{n}\mathrm{-}1} Cu n {\mathrm{Cu}}_{\mathit{n}} O 2 n + 4 {\mathrm{O}}_{2\mathit{n}+4} thin films
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Z. Schlesinger, R. T. Collins, F. Holtzberg, C. Feild, S. H. Blanton, U. Welp, G. W. Crabtree, Y. Fang, and J. Z. Liu, Superconducting energy gap and normal-state conductivity of a single-domain YBa 2 {\mathrm{YBa}}_{2} Cu 3 {\mathrm{Cu}}_{3} O 7 {\mathrm{O}}_{7} crystal
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2015
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