Superconductor superfluid density from the Bardeen–Cooper–Schrieffer/Bose crossover theory

Israel Chávez,Marcela Grether,Manuel de Llano

SN Applied Sciences（2022）

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摘要

The superfluid density n_s(T) of a superconductor is calculated based on the generalized Bose–Einstein condensation (GBEC) theory that addresses a fully-interacting ternary boson-fermion gas mixture of free electrons as fermions, plus two-electron Cooper pairs (2eCPs) and also, explicitly , two-hole Cooper pairs (2hCPs), both as bosons. Here we consider two special cases (i) 100

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关键词

Boson-fermion gas mixture,Two-electron/two-hole Cooper pairs,BCS-Bose crossover theory,Superfluid density

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