Dimensionality plays an essential role in determining the nature and properties of a physical
system. This is particularly evident in quantum systems, where interactions and fluctuations …

Cold atomic gases provide a remarkable testbed to study the physics of interacting many-
body quantum systems. Temperatures are necessarily nonzero, but cooling to the ultralow …

Disorder or quasidisorder is known to favor localization in many-body Bose systems. Here,
in contrast, we demonstrate an anomalous delocalization effect induced by …

The superfluid fraction f of a quantum fluid is defined in terms of the response of the system
to a weak and constant drag. Notably, Leggett long ago derived two simple expressions …

In this work, we extend the analysis of interacting bosons at 2D-1D dimensional crossover
for finite size and temperature by using the field theory approach (bosonization) and …

Dissipation is an unavoidable feature of quantum systems, typically associated with
decoherence and the modification of quantum correlations. In the study of strongly …

The exploration of dimensional crossover carries profound fundamental significance,
serving as a crucial bridge in comprehending the remarkable disparities observed in …

Dissipation is unavoidable in quantum systems. It usually induces decoherences and
changes quantum correlations. To access the information of strongly correlated quantum …

The equation of state (EOS) for a pure two-dimensional (2D) Bose gas exhibits a logarithmic
dependence on the s-wave scattering length [L. Salasnich, Phys. Rev. Lett. 118, 130402 …

The properties of quantum matter arise from the combined effects of dimensionality,
interactions and quantum statistics. An experiment now studies what happens to ultracold …