33 citations · 83 across the 3 of their papers we have counts for
3 papers
cond-mat.quant-gas2018★ 17 cited
Residual entropy and critical behavior of two interacting boson species in a double well
Fabio Lingua, Andrea Richaud, Vittorio Penna
Motivated by the importance of entanglement and correlation indicators in the analysis of quantum systems, we study the equilibrium and the bipartite residual entropy in a two-spec…
cond-mat.quant-gas2017★ 33 cited
Two-species boson mixture on a ring: A group theoretic approach to the quantum dynamics of low-energy excitations
Vittorio Penna, Andrea Richaud
We investigate the weak excitations of a system made up of two condensates trapped in a Bose-Hubbard ring and coupled by an interspecies repulsive interaction. Our approach, based…
cond-mat.quant-gas2017★ 33 cited
Quantum dynamics of bosons in a two-ring ladder: dynamical algebra, vortex-like excitations and currents
Andrea Richaud, Vittorio Penna
We study the quantum dynamics of the Bose-Hubbard model on a ladder formed by two rings coupled by tunneling effect. By implementing the Bogoliubov approximation scheme, we prove t…