Pairing order and condensate fraction across the BCS-BEC crossover in the two-dimensional attractive Hubbard model

arXiv:2610.06319 · cond-mat.str-el · Submitted 2026-10-05 · Read on arXiv

cond-mat.str-el

Submitted: 2026-10-05

Updated: 2026-10-05

Comments: 13 pages, 13 figures (with Appendixes)

Code: https://github.com/Ying-Ning/2D-attractive-Hubbard-data

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Hubbard Model — 1× in this paper · explained in 3 episodes

Sources

• Accelerated quantum Monte Carlo simulations of the attractive Hubbard model on the kagome lattice
• Superfluidity without charge order in the attractive Hubbard model on the kagome lattice
• Finite-size effects and interaction-driven crossovers in quarter-filled attractive Hubbard model: Exact diagonalization, DMRG and machine-learning analysis

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