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Pre-formed Cooper pairs and Bose-Einstein condensation in cuprate superconductors

M. Casas·M. de Llano·A. Puente·A. Rigo·M. A. Solís
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Abstract

A two-dimensional (2D) assembly of noninteracting, temperature-dependent, pre-formed Cooper pairs in chemical/thermal equilibrium with unpaired fermions is examined in a binary boson-fermion statistical model as the Bose-Einstein condensation (BEC) singularity temperature $T_{c}$ is approached from above. Compared with BCS theory (which is {\it not} a BEC theory) substantially higher $T_{c}$'s are obtained without any adjustable parameters, that fall roughly within the range of empirical $T_{c}$'s for quasi-2D cuprate superconductors.

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M. Casas, M. de Llano, A. Puente, A. Rigo, M. A. Solís. 2001-10-18. Pre-formed Cooper pairs and Bose-Einstein condensation in cuprate superconductors. https://doi.org/10.1016/s0022-3697(02)00218-4

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