We study the effect of quantum geometry on the many-body ground state of one-dimensional
interacting bosonic systems. We find that the Drude weight is given by the sum of the kinetic …

The superfluid weight of a generic lattice model with attractive Hubbard interaction is
computed analytically in the isolated band limit within the generalized random phase …

We investigate superfluidity of bosons in gapped topological bands and discover a new
phase that has no counterparts in the previous literature. This phase is characterized by a …

We show that lasing in flat-band lattices can be stabilized by means of the geometrical
properties of the Bloch states, in settings where the single-particle dispersion is flat in both …

Quantum geometry, characterized by the quantum geometric tensor, is pivotal in diverse
physical phenomena in quantum materials. In condensed matter systems, quantum …

We show that lasing in flat band lattices can be stabilized by means of the geometrical
properties of the Bloch states, in settings where the single-particle dispersion is flat in both …

The superfluid weight of a generic lattice model with attractive Hubbard interaction is
computed analytically in the isolated band limit within the generalized random phase …

Topological and geometrical features arising in bosonic Bogoliubov-de Gennes (BdG)
systems have mainly been studied by utilizing a generalized symplectic version of the Berry …

We consider a weakly interacting Bose-Einstein condensate that is loaded into an optical
lattice with a two-point basis and described by a two-band Bose-Hubbard model with …

In lattice models, destructive interference can lead to formation of localized states, which
results in Bloch bands with a constant dispersion, called flat bands. Flat-band systems give a …