5 papers
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…
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…
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…
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…
Single-site entanglement as a marker for quantum phase transitions at non-zero temperatures
Willdauany C. de Freitas Silva, Andressa R. Medeiros-Silva, Rubem Mondaini +2
Entanglement has been widely investigated in condensed matter systems since they are considered good candidates for developing quantum technologies. Additionally, entanglement is a…