Superfluid density in cuprates: hints on gauge compositeness of the holes

P. A. Marchetti; G. Bighin

doi:10.1007/s10948-016-3633-9

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arXiv · 1607.03801

Superfluid density in cuprates: hints on gauge compositeness of the holes

P. A. Marchetti·G. Bighin

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Abstract

We show that several features (the three-dimensional XY universality for moderate underdoping, the almost-BCS behaviour for moderate overdoping and the critical exponent) of the superfluid density in hole-doped cuprates hint at a composite structure of the holes. This idea can be implemented in a spin-charge gauge approach to the $t - t' - J$ model and provides indeed good agreement with available experimental data.

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P. A. Marchetti, G. Bighin. 2016-07-13. Superfluid density in cuprates: hints on gauge compositeness of the holes. https://doi.org/10.1007/s10948-016-3633-9

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