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.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…
cond-mat.str-el2025
Controlling quantum phases with electric fields in one-dimensional Hubbard systems
D. Arisa, R. M. Dos Santos, Isaac M. Carvalho +1
Quantum systems under electric fields provide a powerful framework for uncovering and controlling novel quantum phases, especially in low-dimensional systems with strong correlatio…