12 citations · 12 across the 1 of their papers we have counts for
3 papers
Double-peak specific heat anomaly and correlations in the Bose-Hubbard model
Eduardo O. Rizzatti, Marco Aurélio A. Barbosa, Marcia C. Barbosa
Considering the thermodynamics of bosons in a lattice described by the Bose-Hubbard Hamiltonian, we report the occurrence of anomalous double peaks in their specific heat dependenc…
Quantum density anomaly in optically trapped ultracold gases
Eduardo O. Rizzatti, Marco Aurelio A. Barbosa, Marcia C. Barbosa
We show that the Bose-Hubbard Model exhibits an increase in density with temperature at fixed pressure in the regular fluid regime and in the superfluid phase. The anomaly at the B…
Residual entropy and waterlike anomalies in the repulsive one dimensional lattice gas
Fernando Barbosa V. da Silva, Fernando Albuquerque Oliveira, Marco Aurélio A. Barbosa
The thermodynamic and kinetics of the one dimensional lattice gas with repulsive interaction is investigated using transfer matrix technique and Monte Carlo simulations. This simpl…