Differential sum rule for the relaxation rate in the cuprates

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Abstract

The differential sum rule for the effective scattering rate 1/τ(ω) was discussed. It was found that in a dirty BCS superconductor, the area under 1/τ(ω) was not changed between the normal and the superconducting states. The analysis showed that the violation of the differential sum rule in the pseudogap phase was due to the absence of the feedback effects from the pairing.

Original languageEnglish (US)
Article number217001
Pages (from-to)2170011-2170014
Number of pages4
JournalPhysical review letters
Volume88
Issue number21
DOIs
StatePublished - May 27 2002

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