Effect of site dilution in the two-dimensional attractive Hubbard model
arXiv:1511.00380 · doi:10.1103/PhysRevB.98.165142
Abstract
We study the percolative superconducting transition as the density of randomly placed attractive centers grows in a host metal. Employing the Hubbard-Stratanovich transformation for the interaction and allowing for spatial, thermal fluctuations of the pairing field, we obtain real-space features of the transition from weak to strong coupling. Spectral and transport properties are studied in detail. BCS-BEC crossover is discussed in the context of site dilution of attractive centers.
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Cited by in corpus (4)
- Dynamical resilience to disorder: the dilute Hubbard model on the Lieb lattice
- Percolation on Lieb lattices
- An intermediate phase induced by dilution in a correlated Dirac Fermi system
- Two particles on a chain with disordered interaction: Localization and dissociation of bound states and mapping to chaotic billiards