Double-weak-link interferometer of hard-core bosons in one dimension
The study examines how a lattice hard-core boson gas behaves when released from a domain wall initial state with two weak links (defects) separated by a distance. The key finding is that these defects cause quantum interference in the density profile, leading to deviations from standard hydrodynamic descriptions. While large distances average out these effects, finite separation reveals coherent patterns beyond simple fluid models.