3 papers
cond-mat.quant-gas2026
BCS-BEC crossover in trapped one-dimensional Fermi-Hubbard chains: entanglement and correlation signatures from DMRG and effective-pairing theory
G. Diniz, I. M. Carvalho, M. Sanino +2
Confined ultracold atoms in optical lattices provide a versatile platform for simulating lattice models of strongly correlated quantum systems, where pairing phenomena and superflu…
cond-mat.str-el2025
Single-site diagonal quantities capture off-diagonal long-range order
M. Sanino, I. D'Amico, V. V. França +1
Quantum phase transitions are typically marked by changes in quantum correlations across various spatial scales within the system. A key challenge lies in the fact that experimenta…
cond-mat.quant-gas2025
Entanglement as a topological marker in harmonically confined attractive Fermi-Hubbard chains
Marina Sanino, Isaac Carvalho, Vivian França
We investigate the single-site von Neumann entropy along a harmonically confined superfluid chain, as described by the one-dimensional fermionic Hubbard model with strongly attract…