ab plane ac conductivity in the cuprates: pseudogap effects below Tc |
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Authors: | Iyengar Andrew Stajic Jelena Kao Ying-Jer Levin K |
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Affiliation: | James Franck Institute, University of Chicago, Chicago, Illinois 60637, USA. |
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Abstract: | Building on our understanding of the superfluid density rho(s)(T), we show how the pseudogap enters the in-plane optical conductivity sigma(omega,T) for temperatures T=T(c). Signatures in sigma(omega,T) associated with competing proposals of a "hidden order" and "superconducting" origin for the pseudogap differ in their qualitative omega,T dependences. For the latter case, as T increases from 0, Re sigma(omega) is enhanced at high and low frequencies. We discuss these theories in light of current experiments. |
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